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Hyphantria cunea Drury. The fall webworm is a widely distributed native pest of shade trees and shrubs and appears from late summer through early fall. It feeds . In Europe, where H. cunea has been introduced, larvae are rapid defoliators of forest and fruit tree species. In eastern Europe, mulberry and the. Common Names. fall webworm. Compiled by Whitney Cranshaw, Colorado State University: Hyphantria cunea (Drury) Lepidoptera: Arctiidae.

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Detection and Inspection Top of page The sex pheromone obtained from female H. Fifth instar larva of the fall webworm, Hyphantria cunea Drury hyphahtria, inside a cocoon.

Entomophagous nematodes Steinernema feltiae can be also used to reduce H. Informatore Fitopatologico, 36 2: It was introduced into Europe Hungary, then Austria and Yugoslavia immediately after the Second World War and has since spread further. Acta Entomologica Sinica, 46 3: State rules and regulations and special pesticide use allowances may vary from state to state: Several types of pathogens can infect this species, such hyphanttria granulovirus which causes granulosis disease and nucleopolyhedrosis virus.

The fall webworm is parasitized by around 50 species, such as Musca domestica L, Muscina stabulansand Chouioia cunea. Journal of the Lepidopterists’ Society. Mulberry is the most hyphanteia host for female fecundity and larval development; however, most larval nests of the first generation are found on Acer negundo, and those of the second generation on fruit trees.


Zashchita Rastenii Moskva5: Eggs are laid in groups of about ten. Introductions of a number of the more important parasitoids from North America were attempted and continued into the s. Description and Life Cycle Back to Top The adult fall webworm moth is bright white, with a hairy body.

Species Hyphantria cunea – Fall Webworm Moth – Hodges# –

The adult is mostly white in the North America regions, but in the south it may be marked with black or brown spots on the forewings. Control of fall webworm. The larvae feed in huge nests and are ccunea to completely defoliate trees and shrubs.

Larix deciduasPinus spp. Impact Top of page In Europe, where H. When several references are cited, they may give conflicting information on the status.

The fall webworm hyphantrka a gregarious insect. Larvae can withstand up to 15 days starvation, although the resultant reproductive capacity of the adult will be adversely affected.

Research progress on the invasive species, Hyphantria cunea. For example, in Japan, DNA barcoding studies have shown that two species might be occurring there sympatrically Takeda Use of life table to evaluate control of the fall webworm by the parasitoid Chouioia cunea Hymenoptera: Influence of the trophic factor on the development of hairy caterpillars of the fall webworm Hyphantria cunea Drury. Journal of Economic Entomology, Risk of Introduction Top of page H. As they grow, they enlarge the webs, which can sometimes enclose the entire tree.


Moth Photographers Group – Hyphantria cunea –

Webs are progressively enlarged and much messier looking than those of tent caterpillars which occur only in spring and have shorter hairs and very little yellow on their bodies ; also, webs from the fall webworm are concentrated to the tips of the branches, whereas the tent caterpillar webs are largely found in the unions.

Journal of Beijing Forestry University, 29 3: Copulation occurs only once a day, for a few minutes, before sunrise. Close-up of fifth instar larvae of the fall webworm, Hyphantria cunea Drury. Relation of parasite attack to the colonial habit of Hyphantria cunea.

Fall Webworm

Pupation occurs in thin cocoons. Pest risk assessment of Dendroctonus valens, Hyphantria cunea and Apriona swainsoni in Beijing area.

Amelanchier canadensis ; Crataegus spp. Dedicated naturalists volunteer their time and resources here to provide this service.

This page was last modified The pupae are brown. Third instar larvae of the fall webworm, Hyphantria cunea Druryfeeding. Second instar larvae of the fall webworm, Hyphantria cunea Drurybefore molting.