3 edition of Douglas-fir tussock moth found in the catalog.
Douglas-fir tussock moth
Robert W. Campbell
by Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station in Portland, Or
Written in English
Complete through Dec. 31, 1977
|Statement||Robert W. Campbell and Lorna C. Youngs|
|Series||General technical report PNW -- 68|
|Contributions||Youngs, Lorna C., Pacific Northwest Forest and Range Experiment Station (Portland, Or.)|
|The Physical Object|
|Pagination||168 p. ;|
|Number of Pages||168|
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-. Jul 01, · We found this caterpillar on a ground peony in our garden this morning. 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. Spraying, of pesticides or pheromones such as microbial insecticide Bacillus thuringiensis, and.
Jul 31, · 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 . The following is excerpted from the Methow Valley Ranger District Douglas-fir Tussock Moth Suppression Project, Final Report of Followup Monitoring: "The Douglas-fir tussock moth (Orgyia pseudotsugata) is a major defoliator of Douglas-fir and true firs.
Journals & Books; Help (X~K P~YPH The Douglas fir tussock moth (Orgyia pseudotsugata) is a pernicious defoliator of the fir trees of the Northwestern United States. The active pheromone constituent has been identified as (Z)eneicosenlne1-, (1); however, in field tests the (E)somer, (2), has been found to have equivalent bioactivity Cited by: While the Douglas-fir tussock moth is not dangerous to the public, the hairs on the moth can cause an allergic reaction in humans known as “tussockosis.” The most common symptoms are.
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Enter your mobile number or email address below and we'll send you a link to download the free Kindle App. Then you can start reading Kindle books on your smartphone, tablet, or computer - Author: M.
H.; Stark, R.W.; Campbell, R.W.; Eds. Brookes. Douglas-fir tussock moth control by the homeowner (Oregon State University. Extension Service.
FS) [Joseph Capizzi] on rafaelrvalcarcel.com *FREE* shipping on qualifying rafaelrvalcarcel.com: Joseph Capizzi. Douglas-fir tussock moth (Orgyia pseudotsugata) is a native defoliator of spruce, Douglas-fir (Pseudotsuga menziesii) and true firs (Abies spp.), though will rarely feed on planted Colorado blue spruce in urban areas.
The moth is a native species found throughout mixed-conifer forests in the western United States and southern British Columbia. the tussock moth are Douglas-fir and true firs, and non-host species such as pines or western larch are usually not fed on, management activities that favor non-host conifers will, in time, produce stands that are resistant to this insect.
Selective harvests or thinning that leave pines as a seed source or inter-planting with non-host species will. 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. Douglas-fir tussock moth (Orgyia pseudotsugata): Outbreak status of a conifer defoliating caterpillar Importance.
The Douglas-fir tussock moth (DFTM) is a defoliating caterpillar that can severely damage Douglas-fir, true fir, and spruce trees in the western United States. In eastern. Douglas-fir tussock moth book Douglas-fir, white fir and spruce Figure 8.
Adult male (left) and femail (right) Douglas-fir moth. Symptoms/Signs: The caterpillar of the Douglas-fir tussock moth is grayish with brightly colored tufts of hair and a shiny black rafaelrvalcarcel.com are also two long horns of black hairs behind the head and another at the rear of the body.
Jul 12, · The caterpillar of the Douglas-Fir Tussock Moth (Orgyia pseudotsugata) feeds on firs, spruce, Douglas-firs, and other evergreens of the western United States and are a major cause of their defoliation. Young caterpillars feed exclusively on new growth but mature larvae feed on.
Surviving stands are invariably in a weakened state, and very susceptible to other insects (such as the Douglas-Fir Beetle) and rafaelrvalcarcel.comonally, 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 (Orgyia pseudotsugata) is a moth of the subfamily Lymantriinae found in western North America.
Its population periodically irrupts in cyclical outbreaks. The 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 rafaelrvalcarcel.com: Insecta. Larval Instars of the Douglas-fir Tussock Moth R. Beckwith U.S.
Department of Agriculture, Combined Forest Pest Research and Development Program, - Douglas fir tussock moth - 15 pages. Treatment Options for Douglas-Fir Tussock Moth About Douglas-fir Tussock Moth Douglas-fir tussock moth (Orgyia pseudotsugata) is a defoliator of Douglas-fir, true fir (Abies spp.) and spruce (Engelmann and Colorado blue) trees.
Native to Colorado’s forests, the insect also may impact Colorado blue spruce in urban settings. Douglas-fir Tussock Moth Orgyia pseudotsugata Key Wildlife Value: The Douglas-fir tussock moth creates snags and down wood by severely defoliating and causing the death of all sizes of true fir and Douglas-fir trees.
It also interacts with other disturbance agents, especially bark beetles, to. Note: Citations are based on reference standards. However, formatting rules can vary widely between applications and fields of interest or study. The specific requirements or preferences of your reviewing publisher, classroom teacher, institution or organization should be applied.
Lymantria means "defiler", and several species are important defoliators of forest trees, including the gypsy moth Lymantria dispar, the douglas-fir tussock moth Orgyia pseudotsugata, and the nun moth Lymantria monacha.
They tend to have broader host plant ranges than most rafaelrvalcarcel.com: Insecta. Douglas-fir Tussock Moth Control by the Homeowner The Douglas-fir tussock moth, Orgyia pseuclot-sugata, is one of the most injurious insect pests of Douglas-fir and true firs found in the West.
Out-breaks may develop explosively and when they do, the caterpillars will attack less preferred species such as pine, larch, spruce, and other species. The Douglas-fir tussock moth is actually helping to bring the tree density and species composition of the forests back toward the natural range.
Other disturbance agents like bark beetles, mistletoe, wind, snow, and fire may also reduce tree density, while seeding and growth continue. 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.
The subject matter in each paper has been indexed to at least one general topic (General, Taxonomy, Biology, Host Relationships, Outbreaks, Control, Related Material). The Forest Entomologist with the Thompson Okanagan Region, Ministry of Forests, Lands and Natural Resource Operations (MFLNRO) states we are experiencing the start of a Douglas-fir tussock moth outbreak throughout the region.
She checked out our area a week ago and found evidence of the natural virus in the population. If private land owners want. – – Orgyia pseudotsugata – Douglas Fir Tussock Moth – (McDunnough, ) Photographs are the copyrighted property of each photographer listed.
Contact individual photographers for permission to use for any purpose. Aug 06, · Butterflies and Moths of North America. collecting and sharing data about Lepidoptera. Pending sightings Sightings I verified Species I created Unidentifiable sightings.
Douglas Fir Tussock Moth Orgyia pseudotsugata (McDunnough, ) Family: Erebidae. Subfamily: Lymantriinae. Identification: Wing Span: Life History: Flight: Late July to.JOURNAL OF INVERTEBRATE PATHOLOGY 14, () A Candidiasis in Larvae of the Douglas-fir Tussock Moth, Hemeroeampa pseudotsugata The occurrence of yeasts in insects is well documented (E.
A. Steinhaus, "Insect Microbiology," Cornell Univ. Cited by: 5.Montana Field Guide contains a wealth of information about Montana's diverse species.
Species - Douglas-fir Tussock Moth - Orgyia pseudotsugata; Douglas-fir Tussock Moth - Orgyia pseudotsugata. Other Names: Douglas Fir Tussock Moth Google Books; rafaelrvalcarcel.com.