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Monday, November 23, 2020 | History

2 edition of Douglas-fir tussock moth infestation in Oregon found in the catalog.

Douglas-fir tussock moth infestation in Oregon

Robert L. Gay

Douglas-fir tussock moth infestation in Oregon

an environmental dilemma of national importance

by Robert L. Gay

  • 134 Want to read
  • 15 Currently reading

Published by Oregon Student Public Interest Research Group in Portland, Or .
Written in English

    Subjects:
  • Douglas-fir tussock moth.

  • Edition Notes

    Statementby Robert L. Gay.
    SeriesOSPIRG reports
    ContributionsOregon Student Public Interest Research Group.
    The Physical Object
    Paginationvi, 34 p. ;
    Number of Pages34
    ID Numbers
    Open LibraryOL14249333M

    The caterpillars of the silverspotted tiger moth feed on the needles, often "tenting" branches with dirty-looking webs. Feeding occurs through fall and winter, with webs becoming more noticeable by spring. Minor infestations cause little harm to trees. Douglas-fir is the preferred host, but pine, arborvitae, spruce, and true firs also are attacked.


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Douglas-fir tussock moth infestation in Oregon by Robert L. Gay Download PDF EPUB FB2

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 either 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 Specifically, publications and 82 unpublished documents make some reference, at least, to the Douglas-fir tussock moth; 55 are concerned with other species in the same genus.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.

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 Service and Oregon and Washington state forestry agencies. It was soon ap- parent that the caterpillars of the Douglas-fir tussock.

Degree-Day Accumulation Related Douglas-fir tussock moth infestation in Oregon book 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 Douglas-fir tussock moth infestation in Oregon book 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. 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. 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. No exact match for douglas fir tussock moth oregon. Showing nearby subjects.

Browsing Subjects: "Douglas D Skystreak" to "Down (Northern Ireland: County)" (Include extended shelves) Help with reading books-- Report a bad link-- Suggest a new listing. Posts about moth written by nosleepingdog. It is the larval form of the Douglas Fir Tussock Moth, Orgyia are, like most caterpillars, voracious eaters and can have a devastating effect on Doug fir forests.

Douglas-Fir Tussock Moth- and Douglas-Fir Beetle-Caused Mortality in a Ponderosa Pine/Douglas-Fir Forest in the Colorado Front Range, USA José F. Negrón 1,*, Ann M.

Lynch 2, Willis C. Schaupp Jr. 3 and Javier E. Mercado 1 1 Rocky Mountain Research Station, USDA Forest Service. Surviving stands are invariably in a weakened state, and very susceptible to other insects (such as the Douglas-Fir Beetle) and onally, about 20% of people and animals are allergic to Douglas-Fir Tussock Moth hairs.

These hairs are present on the larvae, the cast larval skins, the egg masses, the cocoons, and the female moth. The Douglas-fir tussock moth (DFTM), Orgyia pseudotsugata McDunnough (Lepidoptera:Erebidae:Lymantriinae), is a native western North American defoliator of true fir, Abies spp.

Mill., and Douglas. Media in category "Douglas-fir tussock moth control" The following files are in this category, out of total.

(previous page) Johnson Flying Service C Northern Idaha Douglas-fir tussock moth control project. ().jpg 1, × 1,; KB. The caterpillars of the Douglas-fir Tussock moth (Orgyia pseudotsugata) are known for feeding on the needles of spruces, true firs, and Douglas-firs.(Colorado State University Extension) Their feeding typically begins at the tops of these trees with the blue spruce being its favorite target along the Front mature caterpillars can cause significant damage to a tree over the course of.

The Douglas-Fir Tussock Moth and Tussockosis Douglas-fir tussock moth mature larva (caterpillar) Male Douglas-fir tussock moth The Douglas-fir tussock moth is a native insect in the low-lying, dry belt Douglas-fir regions of southern British Columbia.

It is not an introduced species.Moth insects found in the state of Oregon. There are a total of [ ] Oregon Moths in the database.

Consider contributing an image at the email address showcased at the bottom of this page. Idaho land managers set two major timber sales to salvage thousands of dead or dying evergreen trees killed or damaged by a Douglas-fir tussock moth infestation in .