Pacific Southwest

Title: Insect-caused deterioration of windthrown timber in northern California, 1963-1964

Author: Wickman, Boyd E.

Date: 1965

Source: Res. Paper PSW-RP-20. Berkeley, CA: Pacific Southwest Forest & Range Experiment Station, Forest Service, U. S. Department of Agriculture; 14 p

Station ID: RP-PSW-020

Description: The principal tree degrade was caused by blue stain fungi introduced by bark beetles and flatheaded borers. Roundheaded borers caused the most serious wood boring. Smaller trees suffered more degrade than larger, and degrade was more severe below 5,000 feet elevation. Degrade due to insects was not as heavy as expected, probably because of cool summer weather and low insect populations before the wind damage.

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Citation

Wickman, Boyd E.  1965.  Insect-caused deterioration of windthrown timber in northern California, 1963-1964.   Res. Paper PSW-RP-20. Berkeley, CA: Pacific Southwest Forest & Range Experiment Station, Forest Service, U. S. Department of Agriculture; 14 p.