Pinus radiata cultivars (Monterey pine)
Pinus radiata is the most widely planted commercial timber tree in the world. However, in its native range, consisting of five populations in California and Baja California, Mexico, the species is threatened by a number of human-caused impacts: development, human-dispersed plant pathogens, non-native herbivores, etc. Our assessment is specifically based only on populations, stands, or individuals of the species that have become established due to human introductions, or reasonably considered to have been dispersed from such human introductions of the species.
Cal-IPC News Articles
- Steinmaus, S. (2002). Predicting plant invasion with modeling. CalEPPC News. 10: 5.
Cal-IPC Symposium Proceedings
- Steers, R., Jen Jordan, et al. (2010). Invasive pine tree impacts on coastal scrub vegetation in the Marin Headlands. Cal-IPC 2010 Symposium. Ventura, CA, California Invasive Plant Council.
- Carrithers, V. F. (1997). Using Transline* herbicide to control invasive plants. California Exotic Pest Plant Council Symposium ’97. Concord, CA.
- Heath, M., K. Moore, et al. (2005). Trees and shrubs discussion group. California Invasive Plant Council Symposium 2005. Chico, California, CA.
Cal-IPC Rating: Limited
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Explanation of Cal-IPC ratings
- High – These species have severe ecological impacts on physical processes, plant and animal communities, and vegetation structure. Their reproductive biology and other attributes are conducive to moderate to high rates of dispersal and establishment. Most are widely distributed ecologically.
- Moderate – These species have substantial and apparent-but generally not severe-ecological impacts on physical processes, plant and animal communities, and vegetation structure. Their reproductive biology and other attributes are conducive to moderate to high rates of dispersal, though establishment is generally dependent upon ecological disturbance. Ecological amplitude and distribution may range from limited to widespread.
- Limited – These species are invasive but their ecological impacts are minor on a statewide level or there was not enough information to justify a higher score. Their reproductive biology and other attributes result in low to moderate rates of invasiveness. Ecological amplitude and distribution are generally limited, but these species may be locally persistent and problematic.
- Alert – An Alert is listed on species with High or Moderate impacts that have limited distribution in California, but may have the potential to spread much further.
- Watch – These species have been assessed as posing a high risk of becoming invasive in the future in California.
CDFA Rating: None?
Explanation of CDFA ratings
- A – A pest of known economic or environmental detriment and is either not known to be established in California or it is present in a limited distribution that allows for the possibility of eradication or successful containment.
- B – A pest of known economic or environmental detriment and, if present in California, it is of limited distribution.
- C – A pest of known economic or environmental detriment and, if present in California, it is usually widespread.
- D – An organism known to be of little or no economic or environmental detriment, to have an extremely low likelihood of weediness, or is known to be a parasite or predator.
- Q – An organism or disorder suspected to be of economic or environmental detriment, but whose status is uncertain because of incomplete identification or inadequate information.
- * – An asterisk next to the rating indicates that a plant is included in the CCR Section 4500 list of California State Noxious Weeds.
- -* – This plant is included in the CCR Section 4500 list of California State Noxious Weeds, but is otherwise not rated.
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Assessment(s)
Plant Assessment Form - Information gathered by Cal-IPC on the impacts, rate of spread, and distribution of invasive plants in California. Does not include management information.
Cal-IPC Rating: Limited?
Explanation of Cal-IPC ratings
- High – These species have severe ecological impacts on physical processes, plant and animal communities, and vegetation structure. Their reproductive biology and other attributes are conducive to moderate to high rates of dispersal and establishment. Most are widely distributed ecologically.
- Moderate – These species have substantial and apparent-but generally not severe-ecological impacts on physical processes, plant and animal communities, and vegetation structure. Their reproductive biology and other attributes are conducive to moderate to high rates of dispersal, though establishment is generally dependent upon ecological disturbance. Ecological amplitude and distribution may range from limited to widespread.
- Limited – These species are invasive but their ecological impacts are minor on a statewide level or there was not enough information to justify a higher score. Their reproductive biology and other attributes result in low to moderate rates of invasiveness. Ecological amplitude and distribution are generally limited, but these species may be locally persistent and problematic.
- Alert – An Alert is listed on species with High or Moderate impacts that have limited distribution in California, but may have the potential to spread much further.
- Watch – These species have been assessed as posing a high risk of becoming invasive in the future in California.
CDFA Rating: None?
Explanation of CDFA ratings
- A – A pest of known economic or environmental detriment and is either not known to be established in California or it is present in a limited distribution that allows for the possibility of eradication or successful containment.
- B – A pest of known economic or environmental detriment and, if present in California, it is of limited distribution.
- C – A pest of known economic or environmental detriment and, if present in California, it is usually widespread.
- D – An organism known to be of little or no economic or environmental detriment, to have an extremely low likelihood of weediness, or is known to be a parasite or predator.
- Q – An organism or disorder suspected to be of economic or environmental detriment, but whose status is uncertain because of incomplete identification or inadequate information.
- * – An asterisk next to the rating indicates that a plant is included in the CCR Section 4500 list of California State Noxious Weeds.
- -* – This plant is included in the CCR Section 4500 list of California State Noxious Weeds, but is otherwise not rated.
More details
