Treesearch
Douglas-Fir Tussock Moth
| Authors: | Boyd E. Wickman, Richard R. Mason, Galen C. Trostle |
| Year: | 1981 |
| Type: | Forest Insect and Disease Leaflet |
| Station: | Northern Research Station |
| Source: | Forest Insect & Disease Leaflet 86. [Broomall, PA:] U.S. Dept. of Agriculture, Forest Service, Northern Area State & Private Forestry |
Download (PDF 2.45 MB): https://research.fs.usda.gov/download/treesearch/10879.pdf
Abstract
The Douglas-fir tussock moth (Orgyia pseudotsugata McDunnough) is an important defoliator of true firs and Douglas-fir in Western North America. Severe tussock moth outbreaks have occurred in British Columbia, Idaho, Washington, Oregon, Nevada, California, Arizona, and New Mexico, but the area subject to attack is more extensive