Download or read book Situation Statement Douglas fir Tussock Moth Oregon Washington Idaho written by United States. Forest Service. Insect and Disease Management and published by . This book was released on 1974 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 1974 cooperative Douglas fir tussock moth control project written by David A. Graham and published by . This book was released on 1975 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Douglas fir Tussock Moth Situation in Oregon and Washington 1971 1972 written by R. Ladd Livingston and published by . This book was released on 1972 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Douglas fir Tussock Moth Problem in the Northwest written by Interagency Tussock Moth Steering Committee and published by . This book was released on 1973 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fact Sheet written by and published by . This book was released on 1972 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book USDA USDI Environmental Statement written by United States. Forest Service. Pacific Northwest Region and published by . This book was released on 1973 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fact Sheet Douglas fir Tussock Moth Situation Pacific Northwest Region Washington Oregon written by United States. Department of Agriculture and published by . This book was released on 1972 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Douglas Fir Tussock Moth Pest Management Plan 1973 OR WA written by and published by . This book was released on 1973 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Douglas fir Tussock Moth written by Robert W. Campbell and published by . This book was released on 1978 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: This annotated bibliography includes references to 338 papers. Each deals in some way with either the Douglas-fir tussock moth, Orgyia pseudotsugata (McDunnough), or a related species. Specifically, 210 publications and 82 unpublished documents make some reference, at least, to the Douglas-fir tussock moth; 55 are concerned with other species in the same genus. The subject matter in each paper has been indexed to at least one general topic (General, Taxonomy, Biology, Host Relationships, Outbreaks, Control, Related Material). Most of these general topics have been subdivided into more specific headings. For example, Host Relationships includes separate categories for white fir, grand fir, and Douglas-fir. A complete listing of the references in each general and specific category is presented in the index.

Download or read book Douglas fir Tussock Moth written by and published by . This book was released on 2000 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Major Outbreaks of the Douglas fir Tussock Moth in Oregon and California written by Boyd E. Wickman and published by . This book was released on 1973 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Case histories of five tussock moth outbreaks that occurred in California and Oregon between 1935 and 1965 are discussed. Information is given on the size and duration of the outbreaks, the presence of natural control agents and the damage caused. Most of the outbreaks were eventually treated with DDT. However, enough information was available from untreated portions to show the probable trend of natural events in the absence of direct control. Repeated patterns observed in each of the outbreaks enabled certain generalizations to be made about natural population behavior and tree impact. All infestations followed a 3-year cycle with inconspicuous to minimal defoliation the first year, severe foliage loss the second year, and ultimate collapse of the population by the end of the third year. The most severe tree damage occurred in the second year. Additional loss of foliage before population collapse in the third year was usually of minor importance in terms of total impact. Although other natural factors were involved, a virus disease appeared to be the principal cause of insect mortality during collapse.

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 1974 Cooperative Douglas fir Tussock Moth Control Project written by David A. Graham and published by . This book was released on 1975 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Douglas Fir Tussock Moth an Impact Statement Relating to Private Lands in Northeastern Oregon written by J.E. Schroeder and published by . This book was released on 1973 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 102 Monitor written by and published by . This book was released on 1974 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Permit the Use of DDT written by United States. Congress. House. Committee on Agriculture. Subcommittee on Forests and published by . This book was released on 1974 with total page 304 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: