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Wednesday, July 22, 2020 | History

2 edition of Biological control of larch casebearer by parasites in the Northern Region found in the catalog.

Biological control of larch casebearer by parasites in the Northern Region

Tom T. Terrell

Biological control of larch casebearer by parasites in the Northern Region

progress report

by Tom T. Terrell

  • 277 Want to read
  • 22 Currently reading

Published by U.S. Dept. of Agriculture, Forest Service, Division of State and Private Forestry, Division of Forest Insect Research, Northern Region in Missoula, Mont .
Written in English

    Subjects:
  • Larch casebearer -- Biological control -- Montana.,
  • Larch casebearer -- Biological control -- Idaho.,
  • Larch casebearer -- Biological control -- Washington (State)

  • Edition Notes

    Caption title.

    Statementby Tom T. Terrell and Robert E. Denton.
    ContributionsDenton, Robert E., United States. Forest Service. Northern Region.
    The Physical Object
    Pagination3 p. ;
    ID Numbers
    Open LibraryOL16152426M

    Coleophora laricella, the western larch case-bearer, is a moth belonging to the family of case-bearing moths is native to Central and Northern Europe, with its original food source being the European larch or Larix r, it was introduced to North America in the midth century where it has gained a wide range and become an invasive defoliater of several species of. released in the U.S. since the early ’s as a biological control of selected insect pests. The Larch Casebearer defoliated tamarack (eastern larch) in the central Upper Peninsula for the second consecutive year. Larch casebearer is an exotic insect introduced to the Lake States since the early ’s. Introduced parasites have.

    This paper presents a summary of the major forest insect pests and disease conditions in Montana, USA, during Information for the report was derived from ground and aerial surveys across parts of Montana. Defoliators (viz., Western Spruce budworm (Choristoneura occidentalis), Larch casebearer (Coleophora laricella), Douglas-fir tussock moth (Orgyia psuedotsugata), Gypsy moth (Lymantria. An outbreak of Coleophora laricellain larch (Larix decidua) plantations, established on mine spoil banks of the mining-energy-industrial complex of Kolubara in Serbia started in , when the attack was registered on several individual trees. By , it had affected all larch plantations over an area of about ha. Control of larch casebearer was performed using an An-2 type plane on

    Dissection of larvae of Coleophora laricella (Hb.), obtained in April-May from larch growing in 56 localities over an area of 65, sq. miles in southern Ontario, showed that the parasite, Agathis pumila (Eatz.), which had been liberated at four points there in [cf. R.A.E., A 33 ], had become established throughout the region, although infestation by Coleophora was light and. It is too early to evaluate the effects of the two parasitoids, but C. laricinellae is fairly common in British Columbia and may be responsible for the reduction of larch casebearer and less tree mortality (Otvos & Quednau, ). The larch casebearer is a successful biological control program in both eastern Canada and northwestern United States.


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Biological control of larch casebearer by parasites in the Northern Region by Tom T. Terrell Download PDF EPUB FB2

Braconidae) for biological control of the larch casebearer in Oregon, Idaho, and Pennsylvania included some newly imported stocks and additional release locations.

More t parasites were released at eight sites. KEYWORDS: Parasites (insect) (-forest pest control, larch casebearer, Coleophora laricella, biological control (-forest pests. The apparent successful regulation of this insect in the eastern U.S.

by introduced parasites prompted biological control attempts in the West. Introduction of Agathis pumila (Ratzeburg), considered one of the most significant parasites in the East, was emphasized following a Author: Thomas H. Flavell. Forest Service. Northern Region. State & Private Forestry; Resource Type: Technical Report; Date Available: T+; Date Issued: ; Series: Forest pest management; Subject: Larch casebearer -- Biological control -- Idaho; Western larch -- Diseases and pests -- Biological control -- Idaho; Report (United States.

Forest Author: Christine Gail Niwa, John S. Hard. larch casebearer. Host: Western larch. First reported in northern Idaho inthe larch casebearer is the most important needle miner found in our Regions. Damage Larch casebearer larvae can completely defoliate new foliage in early spring, especially during its fourth instar.

Defoliated trees can put out another flush of needles but. A survey of larch forests in the intermountain region that year indicated that ab ha ( sq mi) were infested. 1 The population spread rapidly and uniformly until, init occupied virtually all larch stands in the intermountain regions of eastern Washington, Oregon, and northern Idaho (Fig.

1).Cited by: 8. Reevaluation of larch casebearer parasites in casebearer-infested stands of Region I. Abstract. The larch casebearer, Coleophora laricella (Hubner) was first reported\ud attacking western larch, Larix occidentalis, in Idaho in \ud (Denton, ), 71 years after its introduction into Massachusetts\ud from Europe.

The apparent. The tamarack foliage can be attacked by the larch sawfly and the larch casebearer. If your tree is attacked, consider biological control.

Parasites of these pests are now available in commerce. Printer Friendly Version. This article was last updated on 04/04/ Did you find this helpful. An evaluation during the summer of showed that parasites were still exerting control on the larch casebearer on the Flathead NF.

Parasitism ranged from 4 to 60 percent and averaged percent in the 12 areas surveyed. Four species of parasites were involved. Notes on the Natural Control of Coleophora laricella, the Larch Case-bearer - Volume 24 Issue 2 - W.

Thorpe. Parasites to control the larch case- bearer were first released in the West in by scientists at Intermountaln Station.

Control efforts were based on methods that had been successful in the 's with the casebearer In the Eastern United States. The larch casebearer [ Coleophora laricella (Hubner)], a non-native insect, continues to impact western larch (Larix occidentalis Nutt.) through defoliation events in the Pacific Northwest.

Biological control programs starting in the s released seven species of parasitoid wasps to control C. laricella outbreaks. The larch sawfly, Pristiphora erichronii (Htg.), is currently considered a major forest insect pest in Canada.

At the present time within Canada, the sawfly reacts to parasitism by Mesoleius tenthredinis Morley in two ways. In Manitoba and Saslratchewan the sawfly encapsulates approximately per cent of the parasite eggs deposited, whereas in British Columbia encapsulation rarely exceeds.

Request PDF | Introduced and Native Parasitoid Wasps Associated With Larch Casebearer (Lepidoptera: Coleophoridae) in Western Larch | The larch casebearer. Sympatric with larch casebearer in the Great Lakes Region, eastern larch beetle is a native, tree‐killing bark beetle that also attacks tamarack (Wood ).Eastern larch beetle is distributed across the range of tamarack, which extends from Alaska, across the boreal forest of Canada and the Great Lakes Region of the United States, to eastern Canada and the northeastern United States (Burns.

The larch casebearer [ Coleophora laricella (Hubner)], a non-native insect, continues to impact western larch (Larix occidentalis Nutt.) through defoliation events in the Pacific Northwest. Biological control programs starting in the s released seven species of parasitoid wasps to control C.

laricella outbreaks. Both parasites are now being used for biological control of the casebearer in western North America. pumila was first released in northern Idaho in (Denton ). Request PDF | Climatic synchrony and increased outbreaks in allopatric populations of an invasive defoliator | Larch casebearer is an invasive defoliator in North America distributed within the.

USDA • FOREST SERVICE • NORTHERN REGION State & Private Forestry • Missoula, MT Report January REEVALUATION OF LARCH CASEBEARER PARASITES IN CASEBEARER-INFESTED STANDS OF REGION I Thomas H. Flavell By / 24e,:t. tort. the eastern U.S.

by introduced parasites prompted biological control attempts in. Biogeocenotic mechanisms of formation, existence, and extinction of sustained outbreaks of the larch casebearer Protocryptis sibiricella (Flkv.) were investigated from to in a forest-steppe larch forest at the Kuznetsk Alatau piedmont.

Variation of the pest abundance within the sustained foci is determined by a complex of factors. The first factor is efficient adaptation of the pest. Notes on life-history, fecundity, longevity, and attack pattern of Agathis pumila (Hymenoptera: Braconidae), a parasite of the larch casebearer Quednau, F.W.

Year: Catalog ID: Available from: Laurentian Forestry Centre CFS Availability: PDF (request by e-mail). Despite the establishment of a successful importation biological control program and ongoing parasitism by both native and introduced parasitoids, larch casebearer has .The larch casebearer is a successful biological control program in eastern Canada and may shortly be successful in the northwestern United States.

It is an example of a classic introduction program with the subsequent redistribution of the parasitoids from areas of establishment to new areas.The Larch Casebearer defoliated tamarack (eastern larch) in the central Upper Peninsula for the second consecutive year.

Larch casebearer is an exotic insect introduced to the Lake States since the early 's. Introduced parasites have effectively protected the tamarack resource.