Download or read book Growth of White Fir After Douglas fir Tussock Moth Outbreaks written by Boyd E. Wickman and published by . This book was released on 1986 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Case Study of a Douglas fir Tussock Moth Outbreak and Stand Conditions 10 Years Later written by Boyd E. Wickman and published by . This book was released on 1978 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tree damage occurring immediately after an outbreak of Douglas-fir tussock moth, Orgyia Pseudotsugata McD., and stand conditions 10 years later are described. Because of increased radial growth and ingrowth in the 10-year postoutbreak period, good evidence indicates that tree damage caused by the tussock moth may not be as severe in the overall stand dynamics as previously pictured. The insect probably plays a key role as a phytophagous regulator of primary production in some second-growth white fir stands in California and elsewhere.

Download or read book Mammoth Lakes Revisited 50 Years After a Douglas fir Tussock Moth Outbreak written by Boyd E. Wickman and published by . This book was released on 1991 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Documentation of the Douglas fir Tussock Moth Outbreak population Model written by J. J. Colbert and published by . This book was released on 1979 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Recurrent Outbreak of the Douglas fir Tussock Moth in the Malheur National Forest written by and published by . This book was released on 1998 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Douglas fir Tussock Moth written by United States. Forest Service and published by . This book was released on 1978 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Douglas fir Tussock Moth Handbook written by Boyd E. Wickman and published by . This book was released on 1979 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Degree day Accumulation Related to the Phenology of Douglas fir Tussock Moth and White Fir During Five Seasons of Monitoring in Southern Oregon written by Boyd E. Wickman and published by . This book was released on 1981 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Historical Patterns of Western Spruce Budworm and Douglas fir Tussock Moth Outbreaks in the Northern Blue Mountains Oregon Since A D 1700 written by and published by . This book was released on 1995 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Collapse of an Outbreak Population of the Douglas fir Tussock Moth Hemerocampa Pseudotsugata Lepidoptera Lymantriidae written by Richard R. Mason and published by . This book was released on 1971 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Natural Regeneration 10 Years After a Douglas fir Tussock Moth Outbreak in Northeastern Oregon written by Boyd E. Wickman and published by . This book was released on 1986 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluating Damage Caused to a Campground by Douglas fir Tussock Moth written by Boyd E. Wickman and published by . This book was released on 1975 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tree Mortality and Top kill Related to Defoliation by the Douglas fir Tussock Moth in the Blue Mountains Outbreak written by Boyd E. Wichman and published by . This book was released on 1978 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Growth of White Firs Defoliated by Modoc Budworm in Northeastern California written by George T. Ferrell and published by . This book was released on 1980 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Open-grown, pole-sized white firs defoliated by Modoc budworm (Choristoneura viridis) in northeastern California in the years 1959-62 and 1973-75 suffered only minor growth reductions and topkilling compared with the effects that more protracted budworm outbreaks have had elsewhere on their conifer hosts. Growth index analysis indicated that the firs averaged a cumulative height growth deficit of 14.5 percent, or 34 cm (1.1 ft), over both outbreaks. Firs heavily defoliated during the 1973-75 outbreak were more frequently topkilled and consequently suffered larger height growth deficits. Topkilling during both outbreaks, however, was limited to the terminal shoot, resulting in slight crooks or forks, but no decay, in the stems. Radial growth deficits attributable to the outbreaks were not found and, unless future outbreaks are more protracted or otherwise intensify, the Modoc budworm can be considered only a marginal economic pest of firs in California.

Download or read book Douglas Fir Tussock Moth Egg Hatch and Larval Development in Relation to Phenology of Grand Fir and Douglas fir in Northeastern Oregon written by Boyd E. Wickman and published by . This book was released on 1976 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book USDA Forest Service Research Paper PNW written by and published by . This book was released on 1978 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Douglas fir Tussock Moth written by Robert W. Campbell and published by . This book was released on 1978 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: