You are here: Home
/ Publication Information
Title: Mortality and growth reduction of white fir following defoliation by the Douglas-fir tussock moth
Author: Wickman, Boyd E.;
Source: Res. Paper PSW-RP-7. Berkeley, CA: Pacific Southwest Forest & Range Experiment Station, Forest Service, U.S. Department of Agriculture; 15 p
Publication Series: Research Paper (RP)
Description: In 5 years after a 1954-56 outbreak of Hemerocampa pseudotsugata in Calaveras and Tuolumne Counties, California, 20 percent of the merchantable white fir, or 11,071 board feet per acre, died in heavily defoliated stands. Another 1,113 board feet per acre was lost owing to radial growth reductions in partly defoliated trees; 12 percent of these trees were top-killed. Defoliation alone, and the combined effects of defoliation and attacks of cambium-mining beetles were the main causes of mortality.
Keywords: Hemerocampa pseudotsuga, Abies concolor
- 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.
XML: View XML
Wickman, Boyd E. 1963. Mortality and growth reduction of white fir following defoliation by the Douglas-fir tussock moth. Res. Paper PSW-RP-7. Berkeley, CA: Pacific Southwest Forest & Range Experiment Station, Forest Service, U.S. Department of Agriculture; 15 p
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility