Cal IPC News
–
Protecting California’s Natural Areas
fr
om Wildland W
eeds
from
Weeds
Vol. 11, No. 3, Fall 2003
Circular clones of
Spartina alterniflora
hybrids colonize
mudflats in Alameda
County
our nonCounty.. F
Four
native cordgrass species
are drastically altering
shoreline habitats in
San Francisco Bay
and estuar
estuaryy.
Quarterly newsletter of the California Invasive Plant Council
Hybrid
Invasion
INSIDE:
Invasive Spartina in the San Francisco Estuary
Revising the Cal-IPC List—your help needed
2003 Symposium in photos
Reports from Oregon and Hawaii
From the Director’s Desk
From “EPPC” to “IPC”
California
Invasive Plant
Council
1442-A Walnut Street, #462
Berkeley, CA 94709
(510) 525-1502
www.cal-ipc.org
A nonprofit organization working since 1992
to protect California’s natural areas
from wildland weeds through
research, restoration, and education.
Staff
Doug Johnson, Executive Director
dwjohnson@cal-ipc.org
Brianna Richardson, Project Manager
brichardson@cal-ipc.org
Board of Directors
(terms end December of year noted)
Joe DiTomaso (President-2003)
UC Davis Weed Science Program
Steve Schoenig (Vice President-2003)
California Dept. of Food & Agriculture
Mona Robison (Secretary-2003)
UC Davis Weed Science Program
Becky Waegell (Treasurer-2003)
The Nature Conservancy
Mike Kelly (Past President-2003)
Friends of Penasquitos
Carla Bossard (2003)
St. Mary’s College
Matt Brooks (2003)
USGS Western Ecological Resource Center
Deanne DiPietro (2004)
Sudden Oak Death Research Project
Tom Dudley (2003)
UC Berkeley Dept. of Integrative Biology
Dawn Lawson (2003)
US Navy Facilities
Carri Pirosko (2004)
California Dept. of Food & Agriculture
Alison Stanton (2004)
BMP Ecosciences
On our ballot this fall, members voted overwhelmingly to change our name to the California
Invasive Plant Council. We’ll miss the history we’ve built up as one of the original EPPCs
(not to mention the humorous typos and long telephone explanations) but the improved
name comprehension will be more than worth it!
The same election selected a new batch of board members and officers. President Joe
DiTomaso will be succeeded by Steve Schoenig, whose VP spot will be filled by Alison
Stanton. Carri Pirosko will fill the Secretary spot, while new board member Beth Leger will
be Treasurer. Six new at-large members will be joining the board—Jon Fox, Daniel
Gluesenkamp, Mark Newhouser, Wendy West, Bobbi Simpson, and Jason Giessow. All told,
seven of 15 members will be new to the board! We look forward to their ideas and enthusiasm.
There was a lot of new energy at the Symposium in Tahoe as well (see photos page 8-9).
Informative sessions and working groups mixed with sunny fall weather and a memorable
awards ceremony to make for a great event.
At the Symposium we announced our 2004 Membership Drive, through which we hope to
double our membership to 1,500 members (see page 4). We know there are at least that
many weed warriors in the state, and as a member-driven organization we need them (and
they need us). The drive is part of our overall fundraising strategy, which also includes grantwriting, a board donations campaign, and planning a “weed dinner.” Fundraising is a big
part of what we do here in the office, so that we can support all of the creative projects that
need doing!
Cal-IPC continues to strengthen relationships with other organizations. Our Nursery
Sustainability committee, which recently released a new “landscaping alternatives” brochure,
is working with nurseries and Master Gardeners in the San Francisco Bay Area to stop the
tide of invasive garden escapees. Meanwhile, the new joint membership offered in collaboration with SERCAL (Californial Society for Ecological Restoration) has been popular—over
60 members have taken advantage of the discounted rate already.
Last, but certainly not least, our office staff has expanded. Intern Brianna Richardson, a
recent graduate in Environmental Studies from San Jose State University, has been hired as a
part-time Project Manager. (She also works for the resources division of Midpeninsula
Regional Open Space District). She has already contributed immensely, including doing a
lion’s share of the writing and layout for this issue of Cal-IPC News. Welcome, Bree!
Scott Steinmaus (2004)
Cal Poly San Luis Obispo
Peter Warner (2004)
California State Parks
Bill Winans (2004)
San Diego County Watershed Management
Cal-IPC News
Fall 2003 – Volume 11, Number 3
Editor: Doug Johnson, dwjohnson@cal-ipc.org
Published quarterly by the California Invasive Plant
Council. Articles may be reprinted with permission from
the editor. Submissions of reports, articles, and photos are
encouraged. We reserve the right to edit submissions.
2
Cal-IPC News
Fall 2003
It was my pleasure at the Symposium
to present Jake Sigg with an engraved
machete (conceived and procured by
John Knapp of Catalina Island) for
his decades of dedicated service in the
cause of wildland weed work. Thanks
Jake, for all that you’ve done and
continue to do!
Wildland Weed N
News
News
News
News
Neews
wsN
wsN
wsN
wsN
AB 66 (Leslie), the bill creating the Adopt-ARiverway program for riparian weed control,
was signed by Governor Davis. Funds for
local projects will be solicited from corporate
donors.
A review draft of the California Noxious and
ction P
lan will be distribInv
asiv
nvasiv
asivee Weed A
Action
Plan
uted for comment in November by the
California Department of Food & Agriculture. The plan is the outcome of a year-long
planning process that included a day-long
workshop for 100 weed experts in April.
Once revised, the California Invasive Weed
Awareness Coalition will present the plan to
agencies for formal endorsement.
Biologists with the California Department of
Food and Agriculture’s Biological Control
Program have made initial releases of the
fungus Puccinia jaceae, a new biocontrol
starthistle, in an isolated
agent for yellow starthistle
valley in Napa County. Testing of the
Mediterranean pathogen has shown no side
effects on nearly 100 crop and native plants.
Cal-IPC’s Nursery Sustainability
Committee has published its
long-awaited “landscaping
alternativ
ochur
brochur
ochuree. We
alternatives
es”” br
es
teamed with experts from the
nursery trade to identify safe
alternatives to commonly
sold invasives. For sample
brochures, contact Doug
Johnson at
The California Invasive Weed
Awareness Coalition (CALIWAC)
asiv
sponsored an Inv
nvasiv
asivee Weed Tour for
legislative staff July 25th in Sacramento and
El Dorado counties. This will be an annual
event, and will mesh with another Sacramento
event in the spring for weed warriors to visit
legislators and agency managers.
George Pataki, Governor of New York, signed
a bill August 11th creating a 17-member
invasive species task force charged with
studying the impact of invasive species on
New York and devising a strategy to combat
the problem.
Help double our membership!
Sign up one new member by March 31, 2004 to do your
3 new memstuff—3
part… Sign up more members and get stuff
ee T-shir
t, logo water bottle
bers gets you a fr
free
-shirt,
bottle, or CD
CD, 5 new
members gets you a free book
book, and 10 new members gets you
fr
ee admission to Symposium 2004 in Ventura! Watch for
free
sign-up forms in this fall’s renewal notices.
[
]
Why do this?
As a member-driven organization, Cal-IPC depends on
shared member expertise to provide current information on wildland weeds in
California. We also depend on membership dollars to fund a significant portion of
our work. We know there are lots of wildland weed workers out there whose active
membership would make Cal-IPC an even stronger group, and who would benefit
from our work. Our goal is to make sure that all of our natural constituents are
involved!
John Randall, Director of The Nature
control and eradication of invasive pests. UC
Conservancy’s Wildland Invasive Species
Davis and UC Santa Barbara are among the
Team (and former Cal-IPC Board President),
awardees.
Invasive Plants Conference August 6th on
Conservation Geneticist Deborah Rogers,
“The St. Louis Declaration: Voluntar
oluntaryy Codes
ey P
ine F
or
est E
cology
Director of the Monter
onterey
Pine
For
orest
Ecology
of Conduct—Prospects and Promise.” For
Cooperative
,
has
more information about the codes of
received funding to
conduct go to
post-doc research
for Symposia 2000,
…for
After a multi-year process,
projects in 2004 on
2001, 2002 combined are
California’s Office of Administrative
Monterey pine ecology.
now available. If you
Law has given final approval for
attended any of these
Scientists at North
amending the list of Noxious Weed
conferences (in Concord,
Carolina State
Species. Eleven new wildland weeds San Diego, and SacraUniversity are
will be added to the historically
mento), email
developing software
agriculturally-based list. These will
dwjohnson@cal-ipc.org and
that searches the
likely be given “C” ratings since they
we will mail you a copy.
internet for websites
are widespread.
Proceedings are available to
selling noxious weeds
others for $5 suggested
On August 13th, Tulare County
or invasive species. The
donation plus $2 shipping. Agricultural Internet
inspectors intercepted a shipment of
Monitoring System
aquatic plants from Florida. Hydrilla
verticillata
verticillata, a federal noxious weed and
(AIMS) will be used to locate, then notify
California A-rated aquatic weed, had been
offending vendors.
used as packing material. Subsequent surveys
iodiv
ersity F
or
um
Biodiv
iodiversity
For
orum
of the package’s intended destination revealed In September, a Global B
held
in
Cancun,
Mexico,
began
preparations
no additional Hydrilla in the field.
for World Trade Organization negotiations.
The USDA has awarded $1.5 million to
Several sessions addressed invasive species.
research economic effects of prevention,
NE
W T-shir
ts, books, water bottles, etc…..page 14
NEW
-shirts,
CalEPPC News
Fall 2003
3
Featur
e
eature
Invasive Spartina: “Just another weed”
Biology, Spread, and Prospects for Control
By Brianna Richardson
In 2000, the California Coastal Conservancy formed the Invasive Spartina Project
(ISP) to arrest and reverse the spread of four,
invasive, non-native cordgrasses in the San
Francisco Bay estuary: Spartina alterniflora
(and the hybrids it produces with the native
cordgrass, S. foliosa), S. densiflora, S. patens,
and S. anglica. The impacts of these
cordgrasses, particularly S. alterniflora
hybrids, have the potential to be devastating
to native estuarine systems. Acting as
ecosystem engineers, invasive Spartina
converts open tidal mudflats into cordgrass
meadows; traps and accretes sediment, thus
elevating the substrate and promoting
further colonization; and clogs creeks and
channels, increasing the risk of upland
flooding. Furthermore, Spartina threatens
the habitat of three endangered species: the
California clapper rail (Rallus longirostris
obsoletus), the salt marsh harvest mouse
(Reithrodontomys raviventris), and the
endangered plant, soft bird’s beak
(Cordylanthus mollis mollis). In addition,
many scientists predict the local extinction
of the native cordgrass, S. foliosa, if the
invasion is not stopped.
S. alterniflora hybrids are by far the most
widespread of the invasives, accounting for
470 of the approximately 500 net acres of
invasive Spartina in the estuary. The
infestation is centered in the South Bay,
north of the Dumbarton Bridge, but S.
densiflora has completely infested Corte
Madera creek in the North Bay, and S.
patens can be found at the Benicia State
Recreation Area on the Carquinez Strait.
The ISP is designed to be a regionally
coordinated effort, with a number of
components, including outreach, research,
permitting, mapping, monitoring, and
allocating funds for control efforts. In April
of this year, the draft programmatic EIR/EIS
for the ISP’s Control Program was completed, and the public comment period
ended on June 4. The preferred alternative
put forth in the DEIR is to use a modified
IVM (integrated vegetation management)
approach that utilizes all available control
4 CalEPPC News Fall 2003
techniques including the herbicide
glyphosate. (Biocontrols are not currently
feasible for invasive Spartina due to the close
genetic relationship with the native S. foliosa).
The effectiveness of the ISP may well rest on
the use of herbicides.
The role of herbicides
Is eradication possible?
It is unclear how long it will take the ISP
to eradicate Spartina from the estuary, but
Peggy Olofson, Project Director for the
Control Program, estimates that they could
easily get the population down to a manageable level in just five years—if they begin
immediately and are able to use herbicides in
the integrative manner that they have
proposed. After that the project would
conduct rigorous monitoring around the bay
to find any new plants and hybrids. Currently, there is no post-eradication plan for the
ISP, though the presence of other wetland
invasives, like perennial pepperweed
(Lepidium latifolium), does pose the possibility
At the current rate of spread, according to
ISP Field Operations Manager, Erik Grijalva,
more Spartina will grow than can be treated
using manual methods alone. He also points
out that the impacts of herbicide use are less
than those of mechanical efforts, which
include extensive driving, digging, covering,
and smothering with heavy machinery like
the Marsh Master. “If you take into
account the ecological costs that are usually
externalized when comparing herbicidebased versus non-herbicide-based control
methods, it quickly becomes apparent that
the most cost-effective and least impactful
method of control is the judicial and
professional use of herbicides. To attempt
something on this scale without the use of
herbicides would be folly.”
On-the-ground work for the ISP
Control Program will not begin until the
EIR is finalized. Once that happens, the
first step in the Control Program will be to
perform selected pilot projects, which have
been identified using a matrix of criteria.
Small sites and outlier populations will be
some of the first areas tackled. Sites near
existing restoration projects have also been
given priority because of the threat
Spartina poses to newly restored wetlands.
Other pilot projects have been planned in
Extent of inv
asivion in SSan
an F
rancisco B
ay
invasivion
Francisco
Bay
the heart of the infestation to demonstrate
Infestations of Spartina spp. are shown as blacks
different methods of control. The team
dots. Map courtesy Katy Zaremba.
will develop a site-specific control plan for
each project site based on its particular
characteristics, such as the presence or absence of the ISP broadening its scope to control
of endangered species, adjacent land uses,
other invasives while continuing to monitor
feasible treatment methods, land owner
for Spartina.
preferences, and cost. Corte Madera Creek,
The primary goal of the ISP is to eliminate
India Basin, Outer Bair Island, and Whale’s
the threat from Spartina, and it is a formiTail marsh are only a few of the expected six
dable one. The ISP faces a myriad of chalto fourteen pilot projects
lenges as they begin the work of eradicating
Spartina from the estuary. Chief among these
are the problems posed by hybridization, the
Working ar
ound endanger
ed
around
endangered
species
Audubon vvolunteers
olunteers co
asiv
tina with black fabric. The technique is designed
covvering inv
invasiv
asivee Spar
partina
to kill the plants by preventing photosynthesis and increasing temperatures. Photo courtesy
Erik Grijalva.
difficulties of working around endangered
species, and the need to educate many
stakeholders about weed management
practices.
Hybrid invasion
The fact that S. alterniflora produces
hybrids that can look very much like the
native S. foliosa creates challenges both in
terms of on-the-ground identification and for
knowing when the invasive Spartina has been
eliminated. S. alterniflora hybrids comprise
the bulk of the invasion in the estuary, they
are the worst of the ecosystem engineers, and
they are reproductively prolific, producing
huge quantities of seed and flowering
coincidently with the native Spartina. “This
is a hybrid invasion,” says Katy Zaremba, ISP
Field Biologist. “S. alterniflora is actually rare,
but the hybrids can engineer the ecosystem
more than S. alterniflora can.”
Genetic analysis must be used in many
cases to definitively identify a plant as hybrid
or native. This makes on-the-ground
eradication decisions difficult, as those
applying the treatment may not be able to tell
if they are looking at a native or a hybrid. At
this stage, most land managers are taking the
conservative approach and eliminating
anything suspected of being a hybrid. But
that won’t solve the problem of determining
when all the invasive Spartina is gone.
Members of the ISP are planning to seek
advice from crop scientists who have worked
extensively with corn (another species in the
Poaceae family) to determine methods of
controlling and selecting against the Spartina
hybrids. And though the debate gets
somewhat esoteric, there is still the question of
how much S. alterniflora DNA constitutes
genetic pollution of the native S. foliosa
population. This question, and the means of
determining when full eradication of the
hybrids has occured, remain. The good news
is that the native
population of S.
foliosa is not currently
threatened. Even
eliminating a large
part of the central
Bay population will
not imperil the
existence of S. foliosa,
which ranges from
Bodega to Baja.
Allowing continued
hybridization,
however, could cause
its extinction.
Of greater concern to the ISP Control
Program is the potential damage to the
endangered California clapper rail, and the
limitations the birds’ presence imposes on the
ability of the ISP to conduct its control work.
Invasive Spartina threatens clapper rail habitat
by choking channels the birds use for
foraging. Logistically, Spartina control
requires low tides, both for access and
herbicide efficacy reasons. The best low tides
in the estuary occur during the summer
months of June, July, and August, but clapper
rail habitat is closed then for protection
during their breeding season. The ISP is
therefore unable to access these control sites
until September when the breeding season
has ended.
Unfortunately, this is the end of the
growing season, when Spartina has already
begun to set seed, the low tides are not ideal,
the days are shorter, and the weather is
seasonably unpredictable. The result is less
effective control work. As Grijalva says, “It’s a
matter of weighing short-term versus longterm impacts. To avoid causing some short
term impacts to the clapper rail during their
breeding season, we risk having long term
impacts caused by the spread of Spartina.”
The ISP is currently working with the U.S.
Fish and Wildlife Service to develop best
management practices for working in clapper
rail habitat during the breeding season, which
will allow the project the window they need
to effectively treat the Spartina in these areas.
Wetlands and w
eeds
weeds
As members of the ISP Control Program
plan effective and environmentally sound
Telltale cir
cular clones spr
eading outwar
d. Photo courtesy
circular
spreading
outward.
Erik Grijalva.
CalEPPC News
Fall 2003
5
control techniques, a bigger philosophical
discussion is occurring around the group’s
work. While many stakeholders around the
Bay actively manage weeds on their land,
others are primarily interested in marsh
restoration, and don’t have much experience
in habitat and weed management. This has
resulted in a number of debates about the
necessity and timing of the project.
Some stakeholders see the Spartina issue as
insurmountable. Others question the ISP’s
use of information from other Spartina
invasion areas of the world, including
Tasmania, Europe, and Washington State.
They believe that information gathered from
other places cannot be relied upon because
there are too many variables unique to the San
Francisco estuary. There has also been
resistance to beginning work on Spartina
until further studies have been conducted
examining its behavior in the estuary. Some
believe it may not become a huge problem in
the estuary, the way it has in Willapa Bay,
Washington, where it covers approximately
20,000 acres.
Much of this debate could be resolved,
according to Olofson, if the Spartina issue
were approached as a weed management issue.
She believes that the ISP’s practice of using
information from other areas, and interpreting
it in light of the conditions in the estuary,
constitutes sound weed management and is
an essential, standard practice. “This is just
another weed. Yes, it’s in an estuarine
environment. Yes, it’s got endangered species
issues. It’s got a lot of other things, but it’s a
weed. And it’s not very extensive. It’s only
500 acres, and that’s nothing compared to
weed problems that people are dealing with
statewide. It seems overwhelming to stakeholders here in the Bay, but to people who are
actually working with weed management, it’s
nothing.”
The ISP does have plans to further discuss
the issues being debated, and work toward a
consensus among all the stakeholders
involved. They’re in the process of forming a
Science Advisory Panel of 12-14 experts in
wetlands, weeds, Spartina, and environmental
processes, all of whom will be local to the San
Francisco estuary. The panel will help the ISP
review their program and interpret new data
and information as it comes in. Then, in May,
2004, the ISP will host the Third International Spartina Conference, with help from
Kim Patton, the coordinator of the first two
conferences held in Washington, as well as
experts from Tasmania and England.
6
Cal-IPC News
Fall 200
3
2003
Spar
tina alterniflora hybrid clones colonizing a S. foliosa meado
w at B
lackie
arin
partina
meadow
Blackie
lackie’’s pastur
pasturee in M
Marin
County.. Photo courtesy Erik Grijalva.
County
Bringing partners together
Despite the challenges facing the ISP, they
have had some great successes, too. According
to Zaremba, they’ve learned a lot about
coordination between the numerous partners
and stakeholders involved in the project.
Outreach to stakeholders around the Bay has
included formal Spartina Control Strategy
meetings and Spartina Field Identification
Training days, as well as many informal
conversations with land owners, managers,
and public citizens. By working with both
larger agencies, such as the East Bay Regional
Parks District, and small groups like Friends of
the Corte Madera Creek, on mapping,
planning, and getting access, they have
succeeding in getting the major landowners
around the Bay on board with the ISP. These
partnerships will prove invaluable, not only in
the Spartina control work, but also in laying
the groundwork for future cooperation on
invasive species issues of common concern.
These partnerships will be critical if the
problem is to be addressed soon. “At this
stage, the Spartina infestation in the Estuary
is not a gigantic problem, it is not insurmountable,” says Grijalva. “At this stage, we
have a chance to do something that really
hasn’t been done anywhere else, which is to
get rid of a Spartina invasion before it
becomes overwhelming. But if we listen to
those who counsel for more evidence in this or
that particular area, or wait to see that we’re
absolutely sure that here it’s going to be a
problem, it’ll be over with. And then it will
be a permanent project, and you will have
constant work and taxpayer dollars just to
maintain it.”
“But we’re going to be effective, and fast,
and we’re just going to get it all done,”
Olofson assures.
For more information, visit the Invasive Spartina
Project’s website at
the ISP staff through peggy@spartina.org.
Pre-press update: The ISP Control
Program’s programmatic EIR/EIS was
finalized by the California Coastal Conservancy on September 25. Pilot projects will
get underway in earnest next spring.
S. alterniflora hybrids colonize higher and
lower on the elevational gradient than does
native cordgrass.
Meeting the Criteria
An update on the Cal-IPC List—and your role!
Peter Warner, Chair, Cal-IPC List Committee, corylus@earthlink.net
O ne of Cal-IPC’s most vital contributions has been the compilation and publication of The Cal-IPC List: Exotic Pest Plants of
Greatest Ecological Concern in California. The Cal-IPC List
complements federal and state “noxious weed” lists that are chiefly
agricultural in origin and application. The Cal-IPC List focuses on
ecologically influential species that are invasive in wildlands.
The Cal-IPC List has been adopted by public and private land
managers as a resource for planning and implementing weed
treatment projects. Given the value of this resource, Cal-IPC
decided to undertake a full revision of the List.
Unlike previous lists, our new list will be based on a systematic
assessment and catalogued documentation. With grant funding
from the Center for Invasive Plant Management, we joined with
colleagues from Arizona and Nevada to develop a defensible
science-based evaluation system, the Criteria for Categorizing
Invasive Non-Native Plants that Threaten Wildlands. The thirteenpoint Criteria allows reviewers to evaluate (and document) the
ecological impact, invasive potential, and extent of invasion of a
given plant
We are now faced with the sizable task of evaluating some 300
plants. Some of these are plants of well-documented concern, while
The Criteria
Thirteen criteria used to assess invasive plants
Ecological Impact
1.1 Impact on abiotic ecosystem processes
1.2 Impact on plant community
1.3 Impact on higher trophic levels
1.4 Impact on genetic integrity
Inv
asiv
otential
nvasiv
asivee P
Potential
2.1 Role of disturbance in establishment
2.2 Local rate of spread with no management
2.3 Recent trend in total area infested within state
2.4 Innate reproductive potential
2.5 Potential for human-caused dispersal
2.6 Potential for natural long-distance dispersal
2.7 Other regions invaded
Extent of Invasion
3.1 Ecological amplitude
3.2 Distribution
You ar
ts…
aree the exper
experts…
As the people out working in the field around the
state, your input is critical to the success of the listing
project. We’ve developed a Criteria for evaluating
invasive plants—now we need to run some 300
known and suspected invasives through the Criteria.
Because little information has been published on many
of these plants, it is crucial that you share your observations from the field. Is a particular plant establishing
populations in undisturbed areas? Is it spreading, and
how fast? What impacts does it have? Please review the
criteria on our website at www.Cal-IPC.org, and send
us your contributions of much-needed information.
others are new additions that have been reported from around the
state. In many cases, there is no published data on species, and we need
reliable observations. This means field reports from many individuals
across the state—yes, you! The criteria has been designed for broad use,
and we need to build a network of observers who have personal
knowledge on the behavior of one or more potentially invasive plants.
Despite the overwhelming nature of the task, we are excited to
have designed a system that relies upon continual contributions of
information from its users in order to make it a practical and effective
resource. Indeed, another of this project’s goals is to identify knowledge
gaps in order to encourage further research, data collection, and other
means of documenting impacts, species’ behavior and the types of
habitats affected.
Throughout the current revision process and beyond, we would
like Cal-IPC members and others to assist us in refining the Criteria
and in compiling a categorized list of invasive species that truly reflects
the latest in scientific knowledge. Don’t be shy about telling us what
you think!
Visit our website (www.cal-ipc.org) to see the Criteria, our list of
species under consideration, as well as information on individual
species that have already been evaluated. We welcome additional
information on any plants, as well as proposals for additional plants to
evaluate and suggestions for improving the Criteria. Please send any
contributions or suggestions to Doug Johnson (dwjohnson@calipc.org) at the Cal-IPC office.
Through this process, any and all land owners and managers,
volunteers, agencies, scientists, and others can assist Cal-IPC in
achieving its most important goals: educating people and promoting
the pursuit of good science.
Cal-IPC News
Fall 200
3
2003
7
Cal-IPC Symposium
Har
d wor
k, high spirits, and hear
ty laughs…
ard
work,
hearty
Thanks again to our
Symposium SSponsors
ponsors
Pampasgrass Lev
el
Level
Monsanto Company
U.S. Geological Survey
Tree-of-H
eav
en Lev
el
ee-of-Heav
eaven
Level
California Native Plant Society
California Society for
Ecological Restoration
EDAW, Inc.
How’d you think all this stuff got done? Board
members and friends help put together packets the
night before.
On the patio at break time with gorgeous October
weather…
Lunch al fresco in the Tahoe autumn…
Working groups discussed progress and needs on
lair
subjects ranging from fire to advocacy. Charlie B
Blair
lair,
here minding the door, organized an impromptu
meeting of CNPSers to discuss getting their members
more tuned into invasives.
The exhibit hall and poster session provided an
opportunity for browsing.
ogan hammerin’
Pulaski Pete Warne
arner and Michael H
Hogan
out some Jubata Blues.
8 CalEPPC News Fall 2003
English Ivy Level
BASF
Dudek & Associates, Inc.
DuPont
Goats-R-Us
Hedgerow Farms
Jones & Stokes
LifeScience!
Olofson Environmental
Rana Creek Restoration
Regional Council of Rural Counties
Restoration Resources
Sepro Corporation
Shelterbelt Builderns, Inc.
Sycamore Associates LLC
Thales Navigation
Wilbur-Ellis Co./John Taylor Fertilizers
Thanks also to our scholarship recipients for
their help at the Symposium, and to session
organizers, speakers, poster presenters,
working group leaders, and field trip
organizers for all or their hard work! Thanks
to Ryan Jones for his illustrations, and to
Bobbi Simpson for taking most of these
photos!
iT
omaso
iP
ietr
o , Carla Bossar
d *,
The Cal-IPC Board of Directors, from left: President Joe D
DiT
iTomaso
omaso, Deanne D
DiP
iPietr
ietro
Bossard
udley
obison
Brrooks
ooks*, Tom D
Dudley
udley*, Treasurer Becky Waegell
aegell*, Secretary Mona R
Robison
obison*, List Chair Peter Warner
arner,
Matt B
Secretary-elect Carri Pirosko
Pirosko, Past-President Mike Kelly
Kelly*, Dawn Lawson
Lawson*, President-Elect Steve Schoenig
Schoenig,
Vice-President-elect and
Nursery Committee
Chair Alison Stanton
Stanton,
Scott
and Bill Winans (Scott
Steinmaus not present).
(*indicates term ending
Dec., 2003.) New board
members for 2004 are
Jon Fox
Fox, Bobbi Simpson
Simpson,
Wendy West
est, Dan
Gluesenkamp
Gluesenkamp, Mark
Ne whouser
whouser, Jason
Giesso
w , and Beth Leger
iessow
(Treasurer-elect).
2003, Lake Tahoe
Awar
ds
wards
Andr
ea P
ickar
Andrea
Pickar
ickartt with the coveted Golden Weed Wrench
for her restoration work at Lamphere Dunes (left). Jake
Sigg weaves through a standing ovation to accept his
award for dedication to weed management (right).
Carolyn Martus accepts the Catalyst Award for
convincing WalMart to stop selling pampasgrass (far
eill of Assembly Member Leslie’s
right). Kevin O’N
O’Neill
office was presented with a Government Support award
for writing AB66, a bill creating the “Adopt-ARiverway” program. Wendy West of El Dorado County
Agriculture, Bobbi Simpson of the NPS Exotic Plant
onaldson of the Lake
Management Team, and Sue D
Donaldson
Tahoe Basin Weed Coordinating Group were recognized
with Director’s Appreciation Awards for their exceptional
efforts in the past year.
Above, contest hopefuls gather at the runway. What started as an “Ugly Shirt”
contest turned into an “Entertaining Shirt” contest. Of course we anticipated that
any decent shirt contest would include break dancing (below). Carri Pirosko
Pirosko, in a
lime chenille number (above far right) appeals to the crowd,“You really gotta feel
it!” Observing in her studying togs is Alison Stanton
Stanton. Susan O’Neil
O’Neil, above, and
her winning shirt do
Eureka, NV proud.
Athena Demetry renders
“Ack! Pppfftttt!” (far right)
while encouraging the use
of Bill the Cat in future
brochures, with Farah
Jason Giessow
(Jason
Giessow) waiting in
the wings. At right, Matt
Hor
owitz sports Apu’s
oro
original Kwiki-Mart workshirt from The Simpsons.
Jon Fox throws down some fly SLO moves, with
eventual dance-off winner John Knapp
Knapp, the Man in
the Brown Shirt, Mr. Diligence himself, observing
Mighta had to a-throwed Jefro (aka Steve Schoenig
Schoenig)
off the stage but the ol’ boy done it hisself
Sue D
onaldson
Donaldson
onaldson’s half-day field trip crew got their hands dirty reseeding and mulching a site reclaimed
from perennial pepperweed
Cal-IPC News
Fall 2003
9
From Oregon…
“D
nter
“Dee Vine IInter
ntervvention
ention””is the motto of the No Ivy League
League, a partnership
between Portland Parks & Recreation and Friends of Forest Park, headquartered in Portland,
Oregon. Their mission is: To restore the native habitat of Forest Park, America’s largest urban
forest, by removing invasive plants, especially English Ivy, through youth development
programs, environmental education, and community participation while promoting
research, providing technical assistance, and seeking relevant societal changes. Here are some
of their preferred
as developed and written by
Ivy R
emo
Remo
emovval P
Prroject Youth C
Crre ws based on their considerable experience in the field.
Other popular tactics include “Donut on a Slope,” “The Pizza Slice,” “Layer Cake,” and
many more. For a complete list of tried-and-true removal methods, or to learn more about
the work the No Ivy League is doing, visit
Sandra Diedrich at (503) 823-3681.
Ivy R
emo
Remo
emovval Techniques
Taquito M
ethod
Method
Cookie Cutter
A refinement of the Log Roll technique,
used to remove ground ivy off of a slope by
starting at the top of the slope and pulling
the ivy downwards towards the bottom of
the slope. Once you have gathered a large
enough amount of ivy, it begins to snowball,
giving it a log like appearance. The problem
is that this ‘log roll’ can get large and
difficult to maneuver around any native
shrubs. The Taquito method addresses this
issues by simply breaking down a log roll
into a series of smaller log rolls, or taquitos.
One does this by starting a regular Log Roll
but stopping before it gets any larger than a
foot or so in diameter. You then sever this
taquito from the live ivy patch and start a
new taquito right where you left off. This
process continues until you get to the
bottom of the slope. Now, instead of having
an erosion-prone bare slope with a huge pile
of ivy at the bottom, you have little terraces
of ivy that will be easier to mulch and
quicker to decompose.
This is one way to work an area between
‘freed’ trees which have ‘lifesavers’ cleared
around them. Think of the ivy patch as a
circle. Systematically pull around the edge to
make the circle smaller and smaller until it
disappears.
Sloppy Joe
Lifesaver
Lifesavers are used often, especially after
girdling a tree. You start pulling up as much
ivy as possible and as deep as possible
around the base of the tree. Keep extending
the pulled area around the base of the tree
until the pulled area is at least six feet from
the tree’s base all the way around — this is
the tree’s lifesaver.
Letters…
I’d like to comment on the fact that a number of “ornamental introductions” were brought to California for fire
control. The California Department of Forestry and Fire
Protection has crafted a number of lists of fire-safe
plants—remarkably all of them contain invasives as
preferred fire-stoppers. CDF is currently incorporating
FireSafe Councils, hundreds of them, around California,
which may someday encourage nurseries to stock and sell
fire-resistant invasives. This could mean clashes down the
road, when invasives are touted as fire-safe means for the
homeowner. We should therefore work with these councils
to suggest more suitable landscaping.
Bud Hoekstra, San Andreas
10 CalEPPC News FFall
all 200
3
2003
This inefficient and damaging tactic occurs
when the ground is very wet on a slope. A
goof-ball puller plows up and down a wet
slope grabbing Ivy here and there. The small
or heaven-forbid large area of slope looks like
barnyard slop. This type of puller should go
weed in a ball field.
A tip of the hat to…
ar
ketplace in Mission Valley (San Diego
The Fenton M
Mar
arketplace
County) for removing pampasgrass (Cortaderia selloana)
from their ornamental landscaping.
Color Spot Nurseries for stopping production of
pampasgrass (Cortaderia selloana) at all of its California
nurseries.
The Union of Concerned Scientists for their push to
increase sponsorship of the National Aquatic Invasive
Species Act (NAISA), raising the number of House cosponsors from 67 to 89 and Senate co-sponsors to 19. (For
more about NAISA go to:
From Hawaii…
Hawaii establishes state Invasive Species Council
The 2003 Hawaii State Legislature and
Governor Linda Lingle passed SB 1505
established the Hawaii Invasive Species
Council (HISC). The legislation calls for State
agency chairs, department heads, federal
agencies, and representatives of local and
international initiatives to meet at least twice
each year to address gaps in Hawaii’s
biosecurity system against invasive pests. The
council will be administratively attached to
the office of the governor and will advise the
governor and legislature on invasive species
issues.
The HISC will proactively address a
critical recommendation from the 2002 study
Filling the gaps in the fight against invasive
species – the need for cabinet-level coordination among all state agencies that have
responsibility for controlling invasive species
on the ground, regulating the pathways in
which invasive species can gain access into
Hawaii, and agencies that use and promote
the pathways or natural resources.
The Coordinating Group on Alien Pest
Species (CGAPS) was formed to bring
agencies and organizations together to work
on these issues. Since 1995, members of
Heterocentron subtriplinervium (pearl
flo
wer)
flow
er), one of Hawaii’s most invasive
horticultural plants. Photo by Clifford
W. Smith.
every major agency and organization
involved in invasive species work
have participated in the quarterly
meetings in an effort to change
policy, improve communications and
collaborations, and to improve public
awareness. CGAPS has had many
successes, but there remained a lack of
committed participation of individuals at the executive level to institute
necessary policy changes.
HISC co-chairs began spearheading the move towards addressing the
Clidemia hir
ta (K
oster
hirta
(Koster
oster’’s curse)
curse). Photo by Gerald D.
need for executive level participation
Carr. This noxious weedy shrub grows up to 2m tall
even before the legislation. “We
in pastures and forest. It is an aggressive invader
believe it is the right thing to do… the which shades out all vegetation below it. The seeds
State of Hawaii needs a proactive
are principally dispersed by alien frugivorous birds,
invasive species prevention and
but any organism moving through the thickets will
control program that includes the
carry seeds away with it. It is probably not resistant to
active involvement of the private
fire, an unlikely event in its habitat, but it rapidly
sector and communities as well as
colonizes burned areas. Several expeditions for
government agencies. The HISC will potential biological control agents have been made in
provide a needed forum to deal with
Trinidad, and a number of insects are being screened
the tough issues,” said HISC co-chair currently. This plant is a serious pest in mesic and wet
Peter Young.
environments on O’ahu and more recently in Wailau,
The HISC legislation requires the Moloka’i, as well as Nahiku and Kailua areas, Maui. It
director, chairperson, or their
has also become established on Kaua’i, West Maui,
designated representative of the
and Waiakea, Hawai’i. There is increasing evidence
Departments of Business, Economic
that many of the new infestations are inadvertently
Development, and Tourism, Health,
established by marijuana growers.
Transportation, Agriculture, Land
and Natural Resources, along with
the President of the University of
Hawaii, federal agency representatives and
Hawii is only the sixth state in the nation to
others to meet no less than twice each year.
institute such a council (the other states being
However, Young and fellow co-chair Sandra
Delaware, Idaho, Illinois, Minnesota and
Kunimoto are going above and beyond the
Oregon).
legislation by expanding the participation to
include other department directors and the
For more info, visit
mayors of each county.
Christy Martin is the Public Information Officer
The HISC will look at each agency’s
for the statewide Coordinating Group on Alien
organizational and resource shortfalls. The
Pest Species (CGAPS) and the Invasive Species
need for sustainable funding sources for
Committees of Hawaii, at
adequate inspections on incoming goods as
well the need for early detection and rapid
response for priority invasive species is critical.
HISC members also face the daunting task of
looking at laws, policies and procedures that
were set a generation or more ago, and setting
systems that will protect Hawaii today and
into the future, when global transportation of
goods and pests will only increase.
Although there is a lot of work to be done,
Hawaii is still far ahead of most of the nation.
Cal-IPC News
F
all 200
3
Fall
2003
11
Readings
Readings,,
Resources &
Reviews
apply to live goods, people, and cargo ships
and airplanes. Funds raised would go into a
“Invasive Species Prevention, Quarantine,
and Control Trust Fund” designated for
inspection, monitoring, prevention, and
quick response efforts. The estimated goal
of this fee collection is $200 million annually,
or 0.025 percent of the combined revenue
from these industries.
GAO accounts for invasives
Invasive Species: Federal Efforts and
State Perspectives on Challenges and
National Leadership
U.S. General Accounting Office
The GAO has released a report summarizing
results from a survey of state agencies
involved in efforts to address invasive species
and members of the federal Invasive Species
Advisory Committee. The report focuses on
state perspectives on (1) gaps in, or problems
with, federal legislation addressing invasive
species, (2) barriers to managing invasive
species, (3) effective leadership structures for
addressing invasive species, and (4) integrating federal aquatic and terrestrial invasive
species legislation and the potential gains and
drawbacks of such legislation.
Biodiversity in maps
Atlas of the Biodiversity of California
California Department of Fish and Game,
$20,
A pictoral guide to the state’s biological
resources, with 87 nature photographs, 48
full-color maps, and 10 wildlife illustrations.
Great for students, outdoor enthusiasts,
environmental planners, biologists, policy
makers and anyone with an interest in
California’s diverse biological resources
Tax intercontinental commerce?
Paying for Protection from Invasive
Species
Peter T. Jenkins, Issues in Science and Technology, Fall 2002.
An attorney and policy analyst at the
International Center for Technology Assessment proposes a system for creating a federal
fund to prevent and respond to invasive
species. The system is based on levying a
“polluter pays” fee on intercontinental trade
and travel industries and the consumers who
create a demand for them. The fee would
12 CalEPPC News Fall 2003
resources.
Layers of information
California Digital Conservation Atlas
California Legacy Project,
This online information tool allows access to
extensive conservation data gathered through
the Legacy Project’s nine regional workshops
throughout the state.
Getting to
the root of
the problem
Boss Tee
Excavator
Boss Reclamation, Rick Evans
or Pete Thompson at (800)
657-8939
The Boss Tree
(see photo)
plucks salt cedar
from the banks
of the Pecos
River in Texas.
By pulling the roots, this tool reduces
resprouting. Attached to the 228 Kamatuso
Excavator as seen here, the tool can access
difficult-to-reach places in challenging terrain.
Resisting herbicide resistance
Avoiding Herbicide Resistance in Weeds
R. Proost, et al., Univ. of Wisconsin Nutrient
and Pest Management, Pub. No. A3615,
Herbicide resistant weeds are a growing
problem that is drawing increasing attention.
This recent 4-page publication colorfully
describes the issue, asks key questions, and
provides succinct information about various
herbicidal modes of action and steps to help
forestall resistance development.
Healthy cattle and creeks
Watershed Resource Guide (CD)
California Cattlemen’s Association,
The guide contains fact sheets, case studies, a
glossary, and a directory of watershed
Know your weeds
1,000 Weeds of North America: An
Identification Guide (CD)
Weed Science Society of America, $54.95,
A pdf version of a brochure advertising the
CD has been posted by Barry Rice-Meyers at
Foam treatment
Organic Hot Foam Weed Control System
Waipuna,
Ccontact Ian Webster at (630) 514-1501 or
The Waipuna system uses a non toxic,
biodegradable foam whose heat kills weed
tissue on contact. The foam solution
contains sugar extract from corn and coconut
and water.
The WILDLAND WEED CALENDAR
If you have a regional, statewide, or national
event that you would like to see mentioned
here, please send info to
Joint conference:
2003 Invasive Plants in Natural and
Managed Systems (IPINAMS) – “Linking
Science and Management”
7th International Conference on the Ecology
and Management of Alien Plant Invasions
November 3-8, 2003
Ft. Lauderdale, FL
This historic event brings together for the first
time the major international weed conference
(EMAPi, which is biennal, and will be held in
Poland in 2005), and IPINAMS, the major
US weed conference, which is jointly
organized by the Weed Science Society of
America and the Ecological Society of
America. The week-long event features
workshops, presentations, and field trips
covering broad range of science, policy, and
management topics. Invited speakers include
Secretary of Agriculture Ann Veneman and
Secretary of Interior Gale Norton. A sizable
California contingent will be attending, and
Cal-IPC will have an exhibit.
War on Weeds SSymposium
ymposium
of innovative products and services. One
session focuses on invasive plants.
November 14, 2003
CSU Monterey Bay
“Big Tools, Little Tools: The Right Tool for the
Right Weed”
On-Farm Conservation Field Meetings
Organizer Kate Martin
February 7 and 22, 2004
Yolo County
Presentations will cover the “Big Picture” of
weeds in California, aquatic weeds, and weed
removal from a company perspective. Speakers
include Doug Johnson, Joe DiTomaso,
Darlene Chirman, Henry Gonzalez, Sue
Hubbard, Patricia Watts, Craig Dremman,
and Don Bartel. “Tool Tailgate” sessions will
allow attendees to show off new, unique,
effective, impressive and favorite tools—you
are invited to bring your own. Registration is
$20, which includes lunch.
Roaside Vegetation Management
Eco-Landscaping: Profiting from a
Green Future
January 10, 2004
Sacramento
This conference will introduce landscape
professionals to new trends and techniques for
meeting the challenges of water conservation,
storm water pollution, resource conservation,
and pesticide and fertilizer reduction. Along
with speakers there will be a mini-trade show
Quotable:
What troubles us is that biology’s meta“phorical
abstratcions all too easily become concrete objects
and substitute for specific, describably processes… Biological
“productivity “ and “diversity” become not only measureable,
but virtuous… [S]cientists must be aware of the potential
problems inherent in invoking the familiar as a convenient
way for describing their ideas. At the very least, we should be
concerned about what the frequent use of “natureal enemies”
(and the notable abasence of “natural allies,” describing an
equally familiar set of ecological interactions) reveals about the
ways in which we interpret nature through metaphorical
lenses, especially in the current historical situation.
”
Matthew K. Chew and Manfred D. Laubichler, from “Natural
enemies—Metaphor or misconception?” in Science Vol. 301, 4
July 2003, 52-53.
Farm Conservation Planning
March 18, 2004, Yolo County
Yolo County
Susan McCloud at (530) 662-2037 x119,
Workshops for landowners, with topics
including weeds and wildlands.
nv
asiv
war
eness Week
National IInv
Awar
wareness
nvasiv
asivee Weeds A
(NIW
AW 5)
(NIWA
February 23-26, 2004
Washington, DC
This event keeps growing, with weed
advocates attending from around the country
to attend sessions with high-ranking agency
officials and lawmakers. Property rights and
the passage of HR 119, providing $100
million to local WMAs, are sure to be
important topics this spring.
I believe the strongest ethical bases, and
“possibly
the only ethical bases, for concern about introduced
species are that they can threaten the existence of native
species and communities and that they can cause staggering
damage, refleceted in economic terms, to human endeavors.
That said, I must address what I believe is a red herring… the
notion that current concern with introduced species is
focussed on all introduce species and founded on are generically ‘bad’ and native species ‘good’. Although some extreme
adherents of an aesthetic stance favoring native species
doubtless hold such a view, invasion biologists do not, and the
many recent government and international activities on
introduced species explicitly recognize the enormous benfits
of some introduced species.
”
Daniel Simberloff, from “Confronting introduced species: A form
of xenophobia?” in Biological Invasions 5: 179-192, 2003.
”
Cal-IPC News
Fall 2003
13
Cal-IPC stuff…
All proceeds from the sale of Cal-IPC merchandise go directly to the
work we do to fight wildland weeds.
B
A. A
quatic and Riparian Weeds of the West. 2003.
Aquatic
Joseph M. DiTomaso and Evelyn A. Healy. Published by University of
California Press. 442 pages, more than 550 color photos. Each species
description provides detailed iinformation on the distribution, habitat,
propagation, phenology, management considerations, and characteristics
that allow distinguishing between similar or related species.
$48.30 includes tax and shipping
B. IInv
nv
asiv
lants of California
nvasiv
asivee P
Plants
California’’s Wildlands. 2000. Edited by Carla
Bossard, John M. Randall, and Marc C. Hoshovsky.. Published by
University of California Press. 360 pages, 133 color photographs,
includes distribution maps and control information.
$31.88 includes tax and shipping
A
C. Landscaping Alternatives brochure
The product of an extensive collaborative process, this 14-panel
brochure presents the connection between landscaping and wildland
weed problems, and gives safe alternatives for a dozen invasive plants
sold in the San Francisco Bay Area. Target species include iceplant, vinca,
English ivy, brooms and pampasgrass. See pdf file at cal-ipc.org for more
detail.
$30.00
$30.00/hundred brochures suggested donation
C
D. CDs bbyy Tahoe musician D
arin Talbot great gift!
Darin
Want to take a bit of the mountain country home with you? Darin’s
lively guitar playing celebrates the Tahoe backcountry with songs about
love, life and snowboarding., and share his affection for the elements.
Hear clips at airtahoerecords.com.
$18.00 includes tax and shipping
great gift!
E. Logo water bottle
These quart-size Nalgenes are perfect for a hike, a day at the desk or a
day in the field. Comes in dark blue, violet, turquise, sage
green, and bright green.
$18.00 includes tax and shipping
D
great gift!
F. T-S
hir
ts
-Shir
hirts
Help spread the word, not the weeds! Our new highquality cotton tees have the Cal-IPC logo on the front,
and “Save California’s Landscape! Stop the Invasion of
Wildland Weeds” on the back. Shirt colors: Navy,
Grey, White. Shirt sizes: YM, YL, S, M, L, XL.
$18.00 includes tax and shipping
F
E
14 CalEPPC News Fall 2003
New and Contributing Members
Thank yyou
ou for yyour
our gener
t! This list reflects new members and
generous
support!
ous suppor
donors since the last newsletter. Let us know if we forgot you or got your
information wrong!
Donations
Mike and Jerre White (Conservation Biology Institute, Encinitas)
Catherine and David Linden (Chico)
Joe D
iT
omaso (UC Davis, Davis)
DiT
iTomaso
Rio Piedras Club (Monterey) to Cape Ivy Biocontrols Development
Life Members
Joan and Kevin Bockman (Buena Vista Native Plant Club, Oceanside)
Contributing Members
Steve Hartman (CNPS, Sherman Oaks)
Bill Neill (Anaheim)
Mike Sherrod (RRM Design Group, San Luis Obispo)
Contributing Institutional Members
Alameda County Waste M
anagement A
uthority (Teresa Eade and Jeanne
Management
Authority
Nadar, San Leandro)
Nature’s Image, Inc. (Michelle and John Caruana, Lake Forest)
New Institutional Members
Sonoma E
cology Center (Mark Newhouser, Sonoma)
Ecology
Zentner and Z
entner (John Zentner, Oakland)
Zentner
Envir
onmental Science Associates (Diane Hussey, San Francisco)
nvironmental
New Family Membership
Catherine and David Linden (Chico)
New Individual Members
Angela Martin (California State Parks, Mendocino),, Katie Beltrano (San Bruno),
Flor
ence Anderson (Weed), Tim D
oher
ty (National Park Service, San Franoherty
lorence
Doher
cisco), Michelle Murphy (National Park Service, San Francisco), Rob Wilson
(UC Cooperative Extension, Susanville), Mike Savino (Sacramento), Rene Simon
illings (Cal Poly San
(Placer County Agriculture Dept., Auburn), Catherine B
Billings
Luis Obispo, Los Osos), Jessica Dowell (Landscape Architect, Oakland), Erica
Nevins (Epsilon Systems Solutions, Ridgecrest), Susan Williams (Epsilon Sysasaki (Cal State Parks, Tahoe City), JJim
im
tems Solutions, Ridgecrest), Tamara SSasaki
Bromberg (Pt. Reyes National Seashore), Jane Rodgers (Pt. Reyes National
alfor
d
Seashore), Ken Lair (US Bureau of Reclamation, Denver, CO), Anne H
Halfor
alford
age (Mojave Desert RCD, Apple Valley), Susan O’N
eil
(BLM, Bishop), Val P
Page
O’Neil
(John Muir National Historic Site, Martinez), Elizabeth Leger (UC Davis),
Gr etchen Ring (NPS, Whiskeytown), G ail D
urham (USFS, Tahoe Basin),
Durham
Beth B
tin Lane (NPS, San Diego), IIngrid
ngrid
Brrenneman (USFS, Tahoe Basin), Mar
artin
Hogle (Information Center for the Environment, UC Davis), Shelley Gladwin
(Golden Gate National Recreation Area, Sausalito), Jen Kirchener (NPS – Devil’s
impson (NPS, Pt. Reyes Station), David Schooley
Postpile, Mammoth), Bobbi SSimpson
hilip B
atchelder (San Bruno Moun(San Bruno Mountain Watch, Brisbane), P
Philip
Batchelder
en Q
uinn (UC Riverside), Robin M
ar
ushia (UC
tain Watch, Berkeley), Laur
Lauren
Quinn
Mar
arushia
Riverside), Michael Rauterkus (UC Riverside), Gretchen Coffman (UCLA,
earns (BLM, Bakersfield), Tara Collins (ECORP,
San Francisco), D enis K
Kearns
athers (Shelterbelt Builders, Inc, Berkeley), E ric Wrubel
Roseville), R oland M
Mathers
osh
(Shelterbelt Builders, Inc, Berkeley), Ted Angle (BLM, Reno, NV), JJosh
Huntsinger (Placer County Ag Dept., Auburn), Lessly Wikle (Berkeley), Nate
Key (Wildlands, Inc., Citrus Heights), Mar
cus Tessier (Wildlands, Inc., Citarcus
rus Heights), Janet Ilse, Kay Panak, and Lech Naumovich (BLM, Hollister),
Mar
cia Carlock (Cal Dept. of Boating & Waterways, Sacramento), JJo
oy D
urighello
arcia
Durighello
ar
k SSkinner
kinner
(Golden Gate National Recreation Area volunteer, San Francisco), M
Mar
ark
(Land Conservancy of San Luis Obispo), Scott Scheibner (Cal State Parks,
Truckee), Chris Boza (City of Chico), Andy Thomson (Dudek & Associates,
oux (Joshua Tree National Park, Twentynine Palms),
Encinitas), Tasha LaD
LaDoux
Lysa Carmody (Kings Beach), Greg F
isher (Circuit Rider Productions, Windsor),
Fisher
D eborah B
ieber (Camp Pendleton), Larr
ughes (Douglas County Weed
Bieber
Larryy H
Hughes
Control, Minden NV), SStan
Hooper
tan H
ooper (Santa Clara Valley Water District, Los
oel B
uettner (Cache Creek Conservancy, Woodland), SSandra
andra B
ar
on
Altos), JJoel
Buettner
Bar
aron
avid SStoffel
toffel (Tehama County Ag Dept,
(EcoLogic Consulting, Watsonville), D
David
tia H
alber
iM
aur
o (Santa Cruz RCD), J ohn
Red Bluff ), Por
ortia
Halber
albertt and D ustin D
DiM
iMaur
auro
Chapman (Santa Clara Valley Water District, Felton), Richar
d Thiel (Sequoia/
Richard
arrington (Wildland Restoration Team,
Kings Canyon National Parks), Cynthia H
Harrington
lofson (Olofson Environmental, Berkeley), E rik G
rijalv
Santa Cruz), Peggy O
Olofson
Grijalv
rijalvaa
ennix (US Navy, China Lake), D ana Conly
(Invasive Spartina Project), Stev
tevee P
Pennix
ylee G
uinon (Sycamore Associates
(Goats-R-Us, Orinda), Lynn Bo
Boyy d and M ar
arylee
Guinon
uan P
ham, Bob F
ur
tado, Leo D
umont, and WillLLC, Walnut Creek), Huy X
Xuan
Pham,
Fur
urtado,
Dumont,
iam B
eatie (Santa Clara Valley Water District), Jeff P
hillips (Monsanto Company,
Beatie
Phillips
Elk Grove), Shana Gross and Amanda Hardman (US Forest Service, South Lake
ur
ton and Kristy U
schyk (Moss Landing Marine Lab), Megan
Tahoe), Rober
obertt B
Bur
urton
Uschyk
Lulow (UC Davis, Winters), Christy Brigham (Santa Monica Mountains NRA,
Thousand Oaks), Thomas Egan (AMEC Earth & Environmental, Helendale),
Ben H
ildenbrand and D
ale Schmidt (Los Angeles Dept. of Water & Power,
Hildenbrand
Dale
iller (Plumas National Forest, Blairsden), Chris Weske (City of
Bishop), Terr
erryy M
Miller
ason
Gilroy), Doug West (El Dorado Ag Consulting, Shingle Springs), Susan M
Mason
(Friends of Bidwell Park, Chico), Kent Reeves (East Bay Municipal Utility Disan Cor
do
trict, Lodi) D
Dan
Cordo
dovva (SRS Technologies, Lompoc), Kimberly Allcock (Unieatie (Santa Clara Valley Water District,
versity of Nevada, Reno, NV), William B
Beatie
San Jose), Lori Bellis (Nevada Dept. Agriculture, Reno, NV), Susanne Bernstein
(LFR Levine-Fricke, Santa Maria), Katherine Blackman (CDFA, Folsom), Jere
Boudell (Arizona State University, Tempe, AZ), M
ichael Bo
w er (St. Mary’s ColMichael
Bow
lege of CA, Lafayette), Bob Brenton (VMS, Folsom), Hugh & Sarah Bunton
(Southern Oregon Goat Producers), Jeanne Chambers (USDA Forest Service),
John Chapman (Santa Clara Valley Water District, Felton), Jason Chur
chill
Churchill
(California Regional Water Quality Control Board, Lahontan Region), D aniel
Clark (Santa Clara County Parks, Los Gatos), Sandra Cleisz (Cleisz Planning &
Design Sonoma), Karen Cotter (Acterra, Menlo Park), Caroline Cox (Northwest
amela D
evries (Chambers
Coalition for Alternatives to Pesticides, Eugene), P
Pamela
Devries
Group, Inc. La Habra), Dustin DiMauro (RCD – Santa Cruz), James Dougherty
esa Eade (Alameda County Waste Management
(GGNRA, San Francisco), Ter
eresa
ulie E
tra (Western Botanical Services, Inc. Reno, NV), JJesse
esse
Auth., San Leandro), JJulie
Etra
Fujikawa (GGNPC – Site Stewardship, San Francisco), Lori Gandelman (Calierlach (Fair Oaks, CA),
fornia Surveying & Drafting Supply, Sacramento), John G
Gerlach
Leia G
iambastiani (Circuit Rider Prod., Santa Rosa), Lisa H
ale (Pestmaster
Giambastiani
Hale
alsey (The Watershed Collaborative, Royal Oaks),
Services, Taylorsville), Gar
aryy H
Halsey
Jeff H
ar
arb
endrix (GGNPC Har
artt (Hart Restoration, Inc., Walnut Grove), D
Darb
arbyy H
Hendrix
Site Stewardship, San Francisco), Matt Horowitz (Santa Cruz, CA), Shaun
Hyde (SePRO Corp., Cameron Park), Kate Martin (Student Conservation Corps,
Hollister), Zac Martin (GGNPC – Site Stewardship, San Francisco), Marcy
McLaughlin (Jones & Stokes, Sacramento), Kevin Merk (Rincon Consultants,
ey
er (Hedgerow Farms, Winters), JJeanne
eanne N
adar
San Luis Obispo), Tanya M
Mey
eyer
Nadar
orgaar
d (UC
(Alameda County Waste Management Auth., San Leandro), Kari N
Norgaar
orgaard
eill (Assemblymember Tim Leslie’s office,
Davis – IGERT, Davis), K evin O’N
O’Neill
ean O
sborn (Target Specialty Products, Fresno), Randi P
aris
Sacramento), D
Dean
Osborn
Paris
asquini (Regional Council of
(Trinity County RCD, Weaverville), S antinia P
Pasquini
hannon P
eters (UC Berkeley), Ben P
eterson (Point
Rural Counties, Sacramento), SShannon
Peters
Peterson
Reyes National Seashore, Pt. Reyes Station), Chris Pirosko (Intermountain Conoerner (Solano Land Trust, Fairfield), Scott P
ow ell (Redsulting, Burney), Ken P
Poerner
Po
avid P
yke (USGS BRD, Corvallis, OR), JJim
im Raisner (Ag
wood NP, Orick), D
David
Pyke
Dept – Sonoma, Santa Rosa), Joe Rigney (Central Coast Wilds, Santa Cruz),
Catey Ritchie (GGNPC Site Stewardship, San Francisco), Tarja SSagar
agar (Nat’l
anger (USDA Forest Service – Lassen NF,
Park Service, Thousand Oaks), Allison SSanger
Susanville), Jon Scott (Minneapolis, MN), Asha Setty (GGNPC – Native Nurscy SShunk
hunk (Thales Navigation, Santa Clara), B
ridget
ery, San Francisco), D ar
arcy
Bridget
Simon (King County Noxious Weed Control Board, Seattle, WA), Fred SSteele
teele
tockton (Geyserville, CA), Don Thomas
(CalTrans District 6, Fresno), Alber
Albertt SStockton
(CNPS, Ben Lomond), Arnie Thompson (San Francisco State University, San
ynne Turner (Lassen County Ag Dept, Susanville), Alan U
chida
Francisco), L
Lynne
Uchida
done (Sonoma State University,
(BLM Surprise Field Office, Cedarville), Lily Ver
erdone
tuar
Monte Rio), SStuar
tuartt Weiss (Creekside Center for Earth Observations, Menlo
Park), Susan Williams (Epsilon Systems Solutions, Ridgecrest), Billie Wilson
kada (UC Davis), John
(Sacramento State University, Rancho Cordova), Mimi O
Okada
Hancock (Upper Lake Pomo Reservation, Upper Lake), Amanda D
alessi (CHARIS/
Dalessi
Ft. Irwin, Barstow), Crystal Ritchie (Cal State Parks, Imperial Beach), David
Board (Forest Service, Reno), Jeanne Chambers (Forest Service, Reno), Sheli
Wingo-T
ussing (The Nature Conservancy, McCloud)
ingo-Tussing
Cal-IPC News
Fall 2003
15
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