3 edition of The balsam woolly aphid problem in Oregon and Washington found in the catalog.
The balsam woolly aphid problem in Oregon and Washington
Norman E. Johnson
by U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station in [Portland, Or
Written in English
|Statement||by Norman E. Johnson and Kenneth H. Wright.|
|Series||Research paper -- no. 18., Research paper (Pacific Northwest Forest and Range Experiment Station (Portland, Or.)) -- no. 18.|
|Contributions||Wright, Kenneth H., Pacific Northwest Forest and Range Experiment Station (Portland, Or.)|
|The Physical Object|
|Pagination||iii, 34 p. :|
|Number of Pages||34|
The seasonal history of Chermes piceae[Dreyfusia piceae] Ratz. was investigated in in the Pacific Northwest of the United States, where it is very variable. The studies were carried out at elevations of 2, , ft. in Oregon and Washington on Pacific silver fir (Abies amabilis) and subalpine fir (A. lasiocarpa), at 1, ft. in Washington on A. alba and A. lasiocarpa, and at Balsam Woolly Adelgid Control, Balsam Woolly Adelgid Control, Climate Risk Modelling of Balsam Woolly Adelgid Damage Severity in Subalpine Fir Stands of Western North America. PLOS ONE, Dec Kathryn H. Hrinkevich, Robert A. Progar, David C. Shaw. Kathryn H. Hrinkevich.
tion of balsam woolly aphid (Chermes piceae Ratz.) was present, although corkbark fir has been attacked elsewhere in the Northwest. A light infestation of woolly aphid has been reported on trees planted in an arboretum in southwestern Washington. A needle rust (Uredinopsis macrosperina) was found on trees in the plantation in past years, but had no. 32 mesh plastic screen cage for release of European dipterous predator (Aphidoletes thompsoni) of the balsam woolly aphid on Pacific silver fir. Black Rock.
The balsam woolly adelgid is an introduced pest that came into western NC in the early s when the Christmas tree industry was just getting started. It used to be the most difficult to control pest of Fraser fir. This is no longer the case as most growers are getting BWA control with their scale. Adelgidae: | | | | Adelgidae | | | | World Heritage Encyclopedia, the aggregation of the largest online encyclopedias available, and the most definitive collection.
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The Balsam Woolly Aphid Problem in Oregon and Washington book. Read reviews from world’s largest community for readers. Excerpt from The Balsam Woolly Ap Ratings: 0. The Balsam Woolly Aphid Problem in Oregon and Washington (Classic Reprint) [Johnson, Norman E.] on *FREE* shipping on qualifying offers.
The Balsam Woolly Aphid Problem in Oregon and Washington (Classic Reprint)Cited by: 3. Get this from a library. The balsam woolly aphid problem in Oregon and Washington. [Norman E Johnson; Kenneth H Wright; Pacific Northwest Forest and Range Experiment Station (Portland, Or.)].
Buy The Balsam Woolly Aphid Problem in Oregon and Washington (Classic Reprint) by Johnson, Norman E. (ISBN: ) from Amazon's Book Store. Everyday low. Buy The Balsam Woolly Aphid Problem in Oregon and Washington (Classic Reprint) by Johnson, Norman E online on at best prices. Fast and free shipping free returns cash on delivery available on eligible : Norman E Johnson.
The Balsam Woolly Aphid Problem in Oregon and Washington Norman E. Johnson, Kenneth H. Wright U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, - Aphids - 34 pages.
The balsam woolly aphid is regarded as a serious threat to all true fir forests of Oregon and Washington, - Its destructiveness has been alarmingly demonstrated on three western species of Abies.
This insect is expected to be a major problem for forest managers and re- Cited by: 3. Books to Borrow. Top American Libraries Canadian Libraries Universal Library Community Texts Project Gutenberg Biodiversity Heritage Library Children's Library. Open Library. Featured movies All video latest This Just In Prelinger Archives Democracy Now.
Occupy Wall Street TV NSA Clip Library. Observations on the Life-Cycle of the Balsam Woolly Aphid, Adelges piceae (Ratz.), in the Willamette Valley of Oregon1 - Volume 91 Issue 4 - A. Tunnock, J. Rudinsky. – Washington County A: Your tree is a tricolor beech, Fagus sylvatica 'Tricolor.' The fuzzy white stuff is not a fungus, but are woolly beech aphids (Phlaphis fagi).
PDF | On Jan 1,David L. Overhulser and others published Balsam Woolly Adelgid Occurrence on True Fir in Oregon | Find, read and cite all the research you need on ResearchGate.
The balsam woolly aphid problem in Oregon and Washington / by Norman E. Johnson and Kenneth H. Wright. The Adelgidae are a small family of the Hemiptera closely related to the aphids, and often included in the Aphidoidea with the Phylloxeridae or placed within the superfamily Phylloxeroidea as a sister of the Aphidoidea within the infraorder family is composed of species associated with pine, spruce, or other conifers, known respectively as "pine aphids" or "spruce aphids".
PNW Nursery IPM: Birch Aphid. Maples: Woolly alder aphid Periphyllus or maple aphid. Perennials: Chysanthemums more mums Foxglove aphid.
Orginal publication 14 July Lastest update Author: R.L. Rosetta, Extension Nursery Integrated Pest Management, Department of Horticulture, Oregon State University/NWREC.
Website editor. A European insect, commonly called the balsam woolly aphid or chermes, is damaging and killing true fir (Abies) in western Oregon and Washington. Someacres are known to be infested. Tree killing has reached the point where concerted action is needed.
Predators collected from balsam woolly adelgid and Cooley spruce gall adelgid in western Oregon and Washington, U.S.A., with reference to biological control of hemlock woolly adelgid (Hemiptera.
Cinara occidentalis and Cinara abietis. Pest description and crop damage C. abietis are large, dark aphids typically feeding on upper stems and tended by ants. May distort stems. occidentalis feed at the base of needles on 1 year and older foliage, often in.
In the West, the balsam woolly adelgid was reported in California inin Oregon around (Keen ), Washington in (Johnson and Wright ), and British Columbia in (Zilahi-Balogh et al., ).
Balsam woolly aphid predators native to Oregon and Washington by R. Mitchell,Agricultural Experiment Station, Oregon State University edition, in English. The balsam woolly adelgid (Adelges piceae (Ratzeburg) (Homoptera: Adelgidae)) (BWA) is a nonnative, invasive insect that threatens Abies species throughout North is well established in the Pacific Northwest, but continues to move eastward through Idaho and into Montana and potentially threatens subalpine fir to the south in the central and southern Rocky Mountains.
The balsam woolly aphid, Adelges piceae (Ratzeburg), an import from Europe, causes major damage to true fir forests in North America. A program has been underway since to control the pest in Oregon and Washington by introducing insect predators. Twenty-three species have been introduced from 7 countries throughout the world.of balsam timber.
Recent infestations in Washington and Oregon resulted in the destruction of two billion board feet of timber. New foundland is alarmed by the spread and tree mortality caused by the balsam woolly aphid, and New Brunswick has an equally serious aphid problem.
Aware of the damaging extent to which this insect problem could.Get this from a library! Infestation characteristics of the balsam woolly aphid in the Pacific Northwest. [R G Mitchell; United States. Department of Agriculture.; Pacific Northwest Forest and Range Experiment Station (Portland, Or.)].