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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Contributors own the copyright to and are solely responsible for contributed content. Differentiation in life cycle cuneea sympatric populations of two forms of Hyphantria moth in central Missouri.

Fall webworm – Wikipedia

Adult Moth with a wingspan of mm; forewings are white or have black spots arranged in a number of rows; hindwings are also white with a small black spot on the leading part. Introductions of a number of the more important parasitoids from North America were attempted and continued into the s.

Some behavioral differences have been noted between different larval morphs. Larvae construct a colonial web and feed together within it.

Fall webworm

Mexican for the biological control of the fall webworm, Hyphantria cunea Lepidoptera: One or more of the features that are needed to show you the maps functionality are not available in the web browser that you are using.


Part of Hyphanea cunea’s success as a species can be attributed to the fact that its larvae are consummate generalists, capable of developing on a wide range of host hyphanttria.

Accessed August 21, cunex The fall webworm has a large number of host plants around the world. For instance, larvae of the red-headed morph stay inside the tent throughout hjphantria larval stage, while the black-headed morph leaves the tent in its fifth instar. Host plants recorded in Florida Heppnerand personal observation Aceraceae: Ferrari R; Trevisan M, Use of life table to evaluate control of the fall webworm by the parasitoid Chouioia cunea Hymenoptera: Views Read Edit View history.

Hyphantria cunea – Bugwoodwiki

Synonymy and color variation in the fall webworm, Hyphantria cunea Drury Lepidoptera: In one to two weeks, the larvae hatch and immediately begin spinning their silk tent.

Late instar, black-headed morph larvae of the fall webworm, Hyphantria cunea Drury. Diapause is facultative and depends on climate. Mostly, the adults appear from May to August and hyphanrtia their eggs. Southern populations may complete four generations in one year, while in the north the fall webworm completes only one life cycle.

Caterpillars of Eastern North America. Warren, LO and M Tadic.

The body is covered with tufts of long, silky, gray hairs arising from black and orange tubercles. Notes on Natural Enemies Top of page H. The information herein is supplied with the understanding that no discrimination is intended and that listing of commercial products, necessary to this guide, implies no endorsement by the authors or the Extension Services of Nebraska, Colorado, Wyoming or Montana.


Cocoon of the fall webworm, Hyphantria cunea Drury. Criticism of products or equipment not listed is neither implied nor intended. Caterpillars of Eastern Forests 2. Hyphantria cunea Drury Adult fall webworm, Hyphantria cunea Drurywith spots on white, which is typical for members of this species from the cunex part of its range.

Preferred host plants include hickory, pecan, walnut, elm, alder, willow, mulberry, oak, sweetgum, and poplar. Vienna Austria, Braasch D, Several types of pathogens can infect this species, such as granulovirus which causes granulosis disease and nucleopolyhedrosis virus.

As the caterpillars grow, they continue to build tents which may reach several feet in diameter by late summer. In the southern part of its range, the moth is white with dark wing spots while in the northern part of its range it is nearly always pure white MPG and was once thought to be a separate species from the southern populations.