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Monday, May 18, 2020 | History

2 edition of test of ten insecticides for controlling the hemlock looper found in the catalog.

test of ten insecticides for controlling the hemlock looper

Norman E. Johnson

test of ten insecticides for controlling the hemlock looper

by Norman E. Johnson

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Published by Weyerhaeuser Forestry Research Center in Centralia, Wash .
Written in English

    Subjects:
  • Hemlock looper -- Control.,
  • Insecticides -- Research.

  • Edition Notes

    StatementNorman E. Johnson and Paul E. Buffam.
    SeriesWeyerhaeuser forestry paper -- no. 6.
    ContributionsBuffam, Paul E.
    The Physical Object
    Pagination10 p. :
    Number of Pages10
    ID Numbers
    Open LibraryOL16145592M

    A.E. Hajek, K. van Frankenhuyzen, in Microbial Control of Insect and Mite Pests, Hemlock Looper. The eastern hemlock looper, Lambdina fiscellaria fiscellaria (Lepidoptera: Geometridae), is a native species in North America, distributed from northeastern to northcentral regions. It feeds on a variety of trees, but outbreaks occur predominantly in stands of balsam fir (Abies. In addition, about 1, × 10 6 kg of chlorine and hypochlorite was used as disinfecting agents, 35 × 10 6 kg of sulphur as fungicide, 47 × 10 6 kg of oil as insecticide, 22 × 10 6 kg of sulphuric acid as fumigant, and × 10 6 kg of various substances as wood preservatives. Strictly speaking, these chemicals are not considered.

    We got out of the truck at one of our research sites and saw two older women painting a picture of the forested road in afternoon sunlight. It was a beautiful scene, but what the artists didn’t know was that they were surrounded by stressed, thinning, and sick hemlock trees infested with the Hemlock Woolley Adelgid (HWA), the invasive insect pest currently attacking Eastern Hemlock Trees. Poison hemlock plant is one of those nasty weeds that no one wants in their garden. Every part of this noxious plant is poisonous, and its invasive nature makes it nearly impossible to control without chemicals. Find out more about the weed in this article.

    A decision support system (DSS) for improved management decision making and to reduce impacts of forest insect outbreaks was developed and implemented for two defoliators, hemlock looper (Lambdina. Hemlock Looper (Lambdina fiscellaria) Lure 10ug. Min. Order 10 lures $30 Mfr. drop ship fee Please allow 7 to 14 days for delivery.. Forestry Distributing’s insect baits, lures and monitoring productsare effective pest management tools designed to provide current and trending information about an insect .


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Test of ten insecticides for controlling the hemlock looper by Norman E. Johnson Download PDF EPUB FB2

Controlled field test of stabilized pyrethrins against the western hemlock looper Author: Richard R Mason ; Pacific Northwest Forest and Range Experiment Station (Portland, Or.). Johnson N, Buffam P, A test of ten insecticides for controlling the hemlock looper. Weyerhaeuser Forest Research Center.

Weyerhaeuser Forestry Paper No. Keen F, Report of an outbreak of the hemlock looper (Ellopia fervidaria) in Pacific County, Washington, Pilot test results of Sevin, Phosphamidon, and DDT on the western hemlock looper: Lambdina fiscellaria lugubrosa Hulst, in southwest Washington in / By.

Buffam, Paul E. United States. Forest Service. United States. Forest Service. Pacific Northwest Region. Type. Book Material. Published material. Publication info. In a Rhode Island nursery severe infestations of Lambdina fiscellaria on Thuja occidentalis trees ( years old, and ca.

6 ft tall) were effectively controlled after one week by spray applications of either 50w carbaryl at 1 lb a.i./ gal or flowable 50% carbofuran at 4 or 8 oz a.i./ gal.

KEYWORDS: Insecticides 'Carbofuran' \ Insecticides carbaryl \ Lambdina fiscellaria \ Lepidoptera \ Cited by: 3.

Eastern hemlock (Tsuga canadensis [L.] Carriére) in the United States is threatened by the invasive hemlock woolly adelgid (Adelges tsugae Annand). The native hemlock looper (Lambdina fiscellaria Guenée) also appears to have played a role in previous population declines of this conifer.

Although these two insects co-occur in much of the adelgid’s invaded range, their interactions remain Cited by: 6. Origin: This is a native insect in eastern North America. Biology: This genus of 9 North American species includes The Hemlock Looper, Lambdina fiscellaria, a potentially destructive species of the eastern half of the U.S.

as well as in the Pacific Northwest and into Alberta and British Columbia. COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus.

Bacillus thuringiensis var. kurstaki (Btk) is a microbial insecticide specific to lepidopterous larvae that is registered for use against the western hemlock looper. It may be used to suppress hemlock looper populations and minimize foliage loss on the areas where it is applied.

However, as discussed earlier, the broad-scale use of fenitrothion in forest insect control operations was phased out byleaving B.t. as the only available option against hemlock looper.

A small-scale field test in demonstrated that tebufenozide could be an alternative to B.t. for hemlock looper control (West et al. ).Cited by: 7. hemlock looper and several other forest insect pests such as the spruce budworm, tussock moth and jack pine budworm.

In fact, data from experimental trials carried out in Newfoundl and on the hemlock looper support ed the r egist rati on of t he products for looper control. Both B.t.k. Results of the entomological aspects of the western hemlock looper control project in southwest Washington / By.

Buffam, Paul E. United States. Forest Service. United States. Forest Service. Pacific Northwest Region. Type. Book Material. Published material. Publication info. Portland, Or. The preferred pesticide registered for use against the hemlock looper is Bacillus thuringiensis (B.t.).

B.t. can be used for both aerial and ground applications but requires careful timing. It is critical that you have early detection for looper if you plan to use B.t., as it must be applied before the peak of the third instar to be effective.

and shown to effectively control the western hemlock looper. The western hemlock looper was included on the December FORAY7 96B pesticide label. Other chemical insecticides have also been labeled for use against western hemlock looper. Please check current labels to insure use is permitted for populations of western hemlock Size: KB.

Purchase Pyrethrum - 1st Edition. Print Book & E-Book. ISBNIn Newfoundland, the most common product used to control hemlock looper is Bacillus thuringiensis var. kurstaki (Btk), a biological insecticide (Skinner et al., ).

Btk is a naturally occurring soil bacterium that must be consumed by the larval stage. Besides Btk, an insect growth regulator Mimic™ (active ingredient tebufenozide) is also by: 5. Identifying Poison Hemlock Poison Hemlock, Conium maculatum L., a Class-C noxious weed, was first introduced from Europe as an ornamental in the is found in most states, including Lincoln County, look for it along river drainages, roadsides, open fields and naturalFile Size: KB.

Plan for the technical direction of the western hemlock looper control project in southwest Washington by Buffam, Paul E; United States. Forest Service. Pacific Northwest RegionPages: Native Insect Pests of Hemlock DOUGLAS C.

ALLEN Figure 1 Adult hemlock looper. Figure 3 Needles damaged by hemlock needleminer (arrow). Figure 2 Mature hemlock looper caterpillar. R oaming through the hills of Vermont as a youngster and, later, working in the fibig woodsfl of northern Maine, I always treasured moments spent movingFile Size: KB.

Moss processing for western hemlock looper eggs. Grinding moss. Portland, Oregon. For more, see the Summarization Report of the Technical Aspects of the Western Hemlock Looper Control Project at Astoria, Oregon. Paul E. Buffam. Insect and Disease Control Branch, Division of Timber Management, Pacific Northwest Region, Portland, Oregon.

correctly classified a high proportion of hemlock looper scales (79%), we determined that hemlock looper can be categorically separated from the other four major moth outbreak species based on. Credit: This publication was adapted from “Insect and Mite Control on Woody Ornamentals and Herbaceous Perennials,” Bulletinan Ohio State University Extension publication authored by D.J.

Shetlar, Department of Entomology, The Ohio State University, Columbus OH; “Insect Control for Shade Trees,” ECand “Insect ControlFile Size: KB.

Trial, H. () The hemlock looper in Maine and a forecast for Maine Forest Service, Maine Department of Conservation, Insect and .This chapter focuses on hemlock looper (Lambdina fiscellaria fiscellaria) occurring on balsam fir (Abies balsamea) in Canada, and provides an overview of the biological control agents (parasitoids and entomopathogenic bacteria (Bacillus thuringiensis subsp.

kurstaki; Btk)) that have been used to date for its management and the evaluation of effectiveness of by: 2.