2 edition of Lepidoptera associated with western spruce budworm. found in the catalog.
by U.S. Dept. of Agriculture, Forest Service, Cooperative State Research Service in [Washington, D.C.?]
Written in English
|Series||Spruce budworms handbook, Agriculture handbook -- no. 622., Agriculture handbook (United States. Dept. of Agriculture) -- no. 622.|
|Contributions||United States. Cooperative State Research Service., Canada/United States Spruce Budworms Program.|
|The Physical Object|
|Pagination||63 p. :|
|Number of Pages||63|
This book is a synthesis of current knowledge about the insect and its hosts. It summarizes most of the known information on the western spruce budworm and provides background for the recommendations contained in two management books: Managin f^ Trees and Stands Susceptible to Western Spruce Budworm, and. Western Spruce Budworm and Forest. A literature review of the spruce, western, and 2-year-cycle budworms: Choristoneura fumiferana, C. occidentalis, and C. biennis (Lepidoptera: Tortricidae) by McKnight, Melvin E; Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.)Pages:
Lepidoptera associated with western spruce budworm in the southwest ern United States. Family Gelechiidae Family Gelechiidae The Western Spruce Budworm produces one generation per year, and prefers to feed on Douglas-fir, although true firs (such as Grand fir, Sub-alpine etc.), Larch and. In Canada, the western spruce budworm feeds mostly on Douglas-fir. Outbreaks are associated with mature, homogeneous stands of this species, particularly in the drier portions of the range. Contiguous forests with large trees may support very high densities of western spruce budworm. Weather has a complex influence.
Harvey GT () The taxonomy of the coniferophagous Choristoneura (Lepidoptera: Tortricidae): A review. In Sanders CG, Stark RW, Mullins EJ, Murphy J eds Recent Advances in Spruce Budworm Research: Proceedings of the CANUSA Spruce Budworms Research Symposium. Canadian Forestry Service and USDA Forest Service, Ottawa, ON. 16–Cited by: The spruce budworm (Choristoneura fumiferana Clemens) is perhaps the single most important disturbance agent in Canada’s eastern e and forest composition are dominant factors in spruce budworm outbreak dynamics through their direct influences on the pest, its natural enemies, and its hosts, and through their influence on the multitrophic interactions that are important in Cited by:
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Genre/Form: Field guides Identification: Additional Physical Format: Online version: Stevens, Robert E., Lepidoptera associated with western spruce budworm. of which closely resemble western spruce bud worm, Workers must be able to distinguish between the differ ent species and groups.
Western spruce budworm is character ized here, along with its common Lepidoptera associates (table I); keys are included for separating smaller. Get this from a library. Spruce budworms handbook: Lepidoptera associated with western spruce budworm.
[United States. Cooperative State Research Service.; Canada/United States Spruce Budworms Program.;]. no() - Lepidoptera associated with western spruce budworm / - Biodiversity Heritage Library The Biodiversity Heritage Library works collaboratively to make biodiversity literature openly available to the world as part of a global biodiversity community.
This name has historically been applied to the. TABLE 1. Lepidoptera associated with western spruce budworm in the southwest ern United States. Family Gelechiidae Geometridae Noctuidae Plutellidae Pyralidae Tortricidae Enypia spp.
Species Chionodes abella (Busck) Coleotechnites sp. Enypia griseata Grossbeck Eupithecia catalinata McDunnough Achytonix epipaschia (Grote) Syngrapha angulidens Smith. At least 12 taxa of conifer-feeding Choristoneura are currently recognized in North America, with the greatest diversity west of the Rocky Mountains.
Five closely related species, the (eastern) spruce budworm, C. fumiferana (Clem.), the jack pine budworm, C. pinus pinus Free., the western spruce budworm, C.
occidentalis Free., the 2-year-cycle spruce budworm, C. biennis Free., and the coastal. Abstract There currently is considerable confusion regarding the correct application of the name Choristoneura occidentalis Freeman (Lepidoptera: Tortricidae).
This name has historically been applied to the western spruce budworm, a serious forest pest in western North by: 3. REICHENBACH, N. G., and G. STAIRS. Bioenergetics of the western spruce budworm (Lepidoptera: Tortricidae) with comments on endotherm and ectotherm population energetics.
Can. Zool. Energetic components (respiration, consumption, frass production, and growth) for larvae of the western spruce budworm. NOTES ON THE BIOLOGY OF THE WESTERN SPRUCE BUDWORM, CHORISTONEURA OCCIDENTALIS (LEPIDOPTERA: TORTRICIDAE), IN NORTH CENTRAL WASHINGTON By John D.
Stein1 Abstract. Biology of the western spruce budworm, Choristoneura occidentalis, from Douglas-fir, was studied in the Okanogan National Forest in north central Washington.
Larval head capsulesFile Size: 1MB. Abundance and Life Cycles of Lepidoptera Associated with an Outbreak of the Western Spruce Budworm Choristoneura occidentalis (Lepidoptera: Tortricidae) in Southeastern Idaho George P.
Markin Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture, Berkeley, California. Stationed at Davis htt. Insect Morphol. & Embr_voL 7(5/6): /78] Pergamon Press Ltd.
Printed in Great Britain. NERVOUS SYSTEM OF 6th STAGE WESTERN SPRUCE BUDWORM LARVAE, CHORISTONEURA OCCIDENTALIS FREEMAN (LEPIDOPTERA" TORTRICIDAE) C. SCHROEN*, R. ROBERTS]" and J. GUSTAFSON3~ (Accepted 8 March Cited by: 6. Some of the mortality associated with western spruce budworm defoliation contributes to the formation of canopy gaps, increasing structural diversity.
Distribution in Oregon and Washington: Found throughout both states. Epidemic levels of the western spruce budworm (WSB), Choristoneura occidentalis Freeman, caused average tree defoliation in west central Idaho to increase from 35% in to 83% in Associated with this increase in defoliation was a change in relative stand ranking of defoliation between the 2 yr.
WSBwas found to damage all types and developmental stages of reproductive structures of by: 1. Although moths and butterflies are very important pollinators, many Lepidoptera are pests (spruce budworm, hemlock looper, forest tent caterpillar, etc.).
Family. Here are typical representatives of some families in this order. At least one species associated with these families is. Chapter 13 (Page no: 69) Choristoneura occidentalis Freeman, western spruce budworm (Lepidoptera: Tortricidae).
This chapter focuses on western spruce budworm, Choristoneura occidentalis occurring on Pseudotsuga menziesii in British Columbia, Canada, and provides an overview of the biological control agents, viruses (Nucleopolyhedrovirus (NPV) and Granulovirus (GV)) and.
Choristoneura fumiferana, the eastern spruce budworm, is a species of moth of the family is also commonly referred to as the spruce budworm. It is one of the most destructive native insects in the northern spruce and fir forests of the eastern United States and range is also the widest of all the budworm species.
Eastern spruce budworm populations can experience Family: Tortricidae. Response of the Western Spruce Budworm (Lepidoptera: Tortricidae) to Temperature and Humidil Developmental Rates and Survivorship NORMAN G. REICHENBACH AND GORDON R.
STAIRS Department of Entomology, Ohio State University, Neil Avenue, Columbus, Ohio Environ. EntomoJ. 13, (). The relationship of western spruce budworm outbreaks and population collapse to weather parameters was examined using long term weather records from two stations in the budworm outbreak area of British Columbia and outbreak patterns obtained from Forest Insect and Disease Survey records and from tree stem by: budworm and the 2-year-cycle spruce budworm illustrate the situation (Shepherd et al.
The western spruce budworm is at the northern limit of its natural range in BC and is associ-ated most commonly with Douglas-fir, Pseudo-tsuga menziesii (Mirb.) Franco (Pinaceae). The 2-year-cycle spruce budworm appears to be re. Spruce budworms and relatives are a group of closely related insects in the genus Choristoneura.
Most are serious pests of conifers, such as spruce. There are nearly forty Choristoneura species, and even more subspecies, or forms, with a complexity of variation among populations found throughout much of the United States and Canada, and about again this number in Eurasia.
In Eastern North America, Class: Insecta.Developmental rates of embryos, larvae, and pupae of the western spruce bud worm, Choristoneura occidentalis, were determined over temperatures ranging from 10 to 31'C and RHs ranging from 10 to %.
Humidity had a trivial influence on developmental rates of all these life stages, whereas temperature had major effects. Several nonlinear developmental rate models and a cubic polynomial Cited by: 8.Choristoneura freemani Adult Scientific classification Kingdom: Animalia Phylum: Arthropoda Class: Insecta Order: Lepidoptera Family: Tortricidae Genus: Choristoneura Species: C.
freemani Binomial name Choristoneura freemani Razowski, Synonyms Choristoneura occidentalis Freeman, Choristoneura freemani, the western spruce budworm, is a species of moth of the family Tortricidae. It Class: Insecta.