Skip to Main Content
A preliminary hazard model of white pine blister rust for the Sacramento Ranger District, Lincoln National ForestAuthor(s): Brian W. Geils; David A. Conklin; Eugene P. van Arsdel
Source: Res. Note RMRS-RN-6. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 6 p.
Publication Series: Research Note (RN)
Station: Rocky Mountain Research Station
View PDF (320 B)
DescriptionBlister rust, caused by the introduced fungus Cronartium ribicola, is a serious disease of white pines in North America. Since about 1970, an outbreak has been increasing in the Sacramento Mountains of southern New Mexico and threatens southwestern white pine. To help determine the expected extent and impact of blister rust, we propose a preliminary hazard model for the Sacramento Ranger District. The model is based on field observations and experience. We assume blister rust incidence and severity on white pine varies with microclimate and proximity to telial hosts (certain species of Ribes). We identify the sites at risk and rank them into three relative hazard classes based on elevation, plant association, and topographic position. Information is currently available to provisionally identify hazard for blister rust on 35% of the district area at risk. Of the area rated, 12% is low hazard, 43% is moderate hazard, and 45% is high hazard. Average rust incidence level for plots rated as low, moderate, or high hazard was 6%, 45%, and 47%, respectively; average sever- ity was 0.1, 2.5, and 4.5 cankers per tree. Studies are underway to test and refine the model.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationGeils, Brian W.; Conklin, David A. Conklin; van Arsdel, Eugene P. 1999. A preliminary hazard model of white pine blister rust for the Sacramento Ranger District, Lincoln National Forest. Res. Note RMRS-RN-6. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 6 p.
KeywordsCronartium ribicola, southwestern white pine, Pinus strobiformis
- First report of the white pine blister rust pathogen, Cronartium ribicola, in Arizona
- Rust resistance in seedling families of Pinus albicaulis and Pinus strobiformis and implications for restoration
- Histological observations on needle colonization by Cronartium ribicola in susceptible and resistant seedlings of whitebark pine and limber pine
XML: View XML