Douglas-fir tussock moth infestation in Oregon

an environmental dilemma of national importance
  • 34 Pages
  • 4.88 MB
  • 4291 Downloads
  • English
by
Oregon Student Public Interest Research Group , Portland, Or
Douglas-fir tussock
Statementby Robert L. Gay.
SeriesOSPIRG reports
ContributionsOregon Student Public Interest Research Group.
The Physical Object
Paginationvi, 34 p. ;
ID Numbers
Open LibraryOL14249333M

Douglas- fir tussock moth larvae have also been observed feeding on Jeffrey, lodgepole, ponderosa and sugar pines (Pinus jeffreyi, P. contorta, P.

ponderosa, and P. lambertiana), western hemlock (Tsuga heterophylla), western larch (Larix occidentalis), and Engelmann and Colorado blue spruce, as well as understory shrubs and host reproduction. Douglas-Fir Tussock Moth Infestation in Oregon: An Environmental Dilemma of National Importance [Gay, Robert] on *FREE* shipping on qualifying offers.

Douglas-Fir Tussock Moth Infestation in Oregon: An Environmental Dilemma of National ImportanceAuthor: Robert Gay.

This annotated bibliography includes references to papers. Each deals in some way with Douglas-fir tussock moth infestation in Oregon book the Douglas-fir tussock moth, Orgyia pseudotsugata (McDunnough), or a related species. Specifically, publications and 82 unpublished documents make some reference, at least, to the Douglas-fir tussock moth; 55 are concerned with other species in the same genus.

Economics of Douglas-fir tussock moth control: an analysis using the combined stand prognosis/Douglas-fir tussock moth outbreak model and the FORPLAN linear programming model on the Clearwater and Malheur National Forests.

Most Douglas-fir tussock moth outbreaks occur east of the Cascade Mountains crest in mixed conifer stands having high proportions of Douglas-fir, grand fir, or white fir.

In northern Washington, Douglas-fir is the preferred host, while elsewhere in Washington and Oregon, Douglas-fir, white fir, and grand fir are equally preferred. The Douglas-fir tussock moth, Orgyia pseudotsugata (McDunnough), is an important defoliator of spruce, Douglas-fir, true fir and other conifers in the Rocky Mountain region.

Feeding by the larvae can cause complete defoliation of heavily infested trees. There have been outbreaks of Douglas-fir tussock moths in states such as Idaho, Washington, Oregon, Nevada and California. The outbreaks happen in cycles and feed off Douglas fir and true fir.

In eastern Oregon, defoliation by the Douglas- fir tussock moth or western spruce budworm can increase tree susceptibility to DFB attack.

DFB attacks typically peak two years after the end of a Douglas-fir tussock moth defoliation event.

Download Douglas-fir tussock moth infestation in Oregon FB2

THE DOUGLAS-FIR TUSSOCK MOTH The Problem, Alternatives, and Impacts In June of severe defoliation of fir forests was observed north of La Grande, Oregon. Surveys were initiated by the U.S. Forest Douglas-fir tussock moth infestation in Oregon book and Oregon and Washington state forestry agencies.

It was soon ap- parent that the caterpillars of the Douglas-fir tussock. Degree-Day Accumulation Related to the Phenology of Douglas-Fir Tussock Moth and White Fir During Five Seasons of Monitoring in Southern Oregon (Classic Reprint): Wickman, Boyd E.: : BooksAuthor: Boyd E.

Wickman. Douglas-Fir Tussock Moth book. Read reviews from world’s largest community for readers. Excerpt from Douglas-Fir Tussock Moth: An Annotated Bibliography. Douglas Fir Tussock Moth Egg Hatch and Larval Development in Relation to Phenology of Grand Fir and Douglas-Fir in Northeastern Oregon (Classic Reprint): Wickman, Boyd E: : LibrosAuthor: Boyd E Wickman.

Large infestations of Douglas-Fir Tussock Moths can cause severe damage to trees—or even kill them. A single generation lives each year. The larvae hatch in late spring when new growth has developed on the host trees.

As the caterpillars mature, they develop their characteristic dark tufts of hair at each end. In mid to late summer. Douglas-Fir Tussock Moth Boyd E. Wickman, Richard R.

Mason and Galen C. Trestle1 curred in British Columbia, Idaho, Washington, Oregon, Nevada, Cali-fornia, Arizona, and New Mexico, but the area subject to attack is more extensive (fig. Outbreaks of the Douglas-fir tus-sock moth appear to develop almost explosively, and then usually subside. Douglas-Fir Tussock Moth Egg Hatch and Larval Development in Relation to Phenology of White Fir in Southern Oregon (Classic Reprint): Wickman, Boyd E.: : BooksAuthor: Boyd E.

Wickman. Buy Douglas Fir Tussock Moth Egg Hatch and Larval Development in Relation to Phenology of Grand Fir and Douglas-Fir in Northeastern Oregon (Classic Reprint) on FREE SHIPPING on qualified orders.

Douglas-fir tussock moth cocoons on a Douglas-fir sapling. Troy, Oregon.

Details Douglas-fir tussock moth infestation in Oregon FB2

Photo by: Walter J. Buckhorn Date: Septem Credit: USDA Forest. Web Search Engines for Articles on "Douglas-fir Tussock Moth" WorldCat; Google Scholar; Google Books; ; Additional Sources of Information Related to "Insects" Alberta Lepidopterists' Guild Bees - Discover Life Bumble Bee Species Accounts at Montana Entomology Collection Bumble Bee Watch.

Related: Douglas-fir tussock moth affects nea acres of fir trees in the Packer John State Forest. We talked to some huckleberry pickers who were aware of the tussock moth. Douglas Fir Tussock Moth Egg Hatch and Larval Development in Relation to Phenology of Grand Fir and Douglas-Fir in Northeastern Oregon (Classic Reprint): Wickman, Boyd E: at: Paperback.

True fir and Douglas-fir defoliated by Douglas-fir tussock moth. King Mountain infestation.

Description Douglas-fir tussock moth infestation in Oregon EPUB

Malheur National Forest, Oregon. Item Preview. The infestation of the Douglas Fir Tussock Moth is causing devastation from caterpillars around Caribou and the Eagle Point area. People are afraid that by next year the whole area’s fir trees will be dead from the caterpillars eating all the needles and the trees won’t survive.

The trees around the summit centre and on Sasquatch are also. David A. Graham 3 Control of Douglas Fir Tussock Moth.

Bill L. Stevenson 17 State of Knowledge, Work in Progress, and Research Needs for the Douglas Fir Tussock Moth. Robert E. Buckman 21 Oregon's Concerns on the Douglas Fir Tussock Moth Infestation.

Schroeder. 29 Forest Insect Control Through Research. Description of the Area of Infestation 4 History of the Douglas-fir Tussock Moth in the Blue Mountains 4 Chronology of the Douglas-fir Outbreak 6 Control of the Douglas-fir Tussock Moth 7 Timber Management-Salvage and Related Events 9 REVIEW OF LITERATURE Natural Events and Non-Normal Situations ii Attitude of people toward.

The tussock moth caterpillar is quite the sight, if you’ve ever seen one hanging around a Douglas fir tree. Its brightly colored body is covered in fuzz, with tufts of hair on its back. If the tops of your Douglas-fir trees are looking a little bare and brown, there’s a possibility the Douglas-fir tussock moth has moved into your neighborhood.

The caterpillars can come in and destroy parts of a forest in what residents claim to feel like just a day or so. Douglas Fir Tussock Moth Egg Hatch and Larval Development in Relation to Phenology of Grand Fir and Douglas-Fir in Northeastern Oregon (Classic Reprint): Wickman, Boyd E: : BooksAuthor: Boyd E Wickman.

Douglas-Fir Tussock Moth--Landscape and site-specific documentary photography of the tussock moth infestation throughout Northeast Oregon in Larch Casebearer Infestation--Landscape and site-specific documentation of the Larch Casebearer infestation in Northeast Oregon in Spruce Budworm Infestation 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. Orgyia pseudotsugata, the Douglas-fir tussock moth, is a moth of the subfamily Lymantriinae first described by James Halliday McDunnough in It is found in western North America.

Its population periodically irrupts in cyclical caterpillars feed on the needles of Douglas fir, true fir, and spruce in summer, and moths are on the wing from July or August to November.

A horde of Douglas-fir tussock moths, Orgyia pseudotsugata, were eating its needles, filling the air with fragrance of spruce needles. It was an alarming and fascinating sight.

Thousands of.It is the larval form of the Douglas Fir Tussock Moth, Orgyia pseudotsugata. They are, like most caterpillars, voracious eaters and can have a devastating effect on Doug fir forests.

and insect growth regulators, is often used against tussock moth infestations. Human activities, such as monoculture forest plantations, suppression of forest.Additional Physical Format: Online version: Douglas-fir tussock moth.

Washington, D.C.: Combined Forest Pest Research and Development Program, U.S. Dept. of.