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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The neonate caterpillars place the web over single leaves and feed by skeletonizing.
Relation of parasite attack to the colonial habit of Hyphantria cunea. Color of the caterpillars is pale but highly variable, yellow to brown, sometimes greenish. On its home territory in USA, it is conspicuous, mainly on wild trees, but seldom of economic importance Johnson and Lyon, Entomophagous nematodes Steinernema feltiae can be also used to reduce H.
Influence of the trophic factor on the development of hairy caterpillars of the fall webworm Hyphantria cunea Drury. Campsis radicans, Catalpa bignonioides, Catalpa speciosa Buxaceae: Acta Entomologica Sinica, 46 3: Case study on the evaluation of non-economic loss after Hyphantria cunea’s invading China.
Fall webworms overwinter in the pupal stage. They occur together, but differ in the markings of adults and larvae, and in hyphantrria habits and biology Johnson and Lyon, Distribution Maps Top of page You can pan and zoom the map. The fall webworm, Hyphantria cunea Drury. Evaluation of the use of entomogenous nematode, Steinernema feltip str.
The larval stage lasts about four to six weeks. Distribution Table Top of page The distribution in this summary table is based on hyphwntria the information available.
This page was last modified Range all of United States and southern Canada plus northern Mexico accidentally introduced from North America to Yugoslavia in the s, and has since spread throughout Europe; later introduced to northern China and North Korea Habitat Weblike tents in branch tips where clusters of caterpillars strip foliage by contrast, eastern tent caterpillar nests are built in tree crotches adults are nocturnal and attracted to light Season Adults fly from May to July in the north; March to August in the south or all year in Florida Caterpillars are found June to September or October in the north; May to October in the south.
A second generation may occur in warmer areas of the state. Control of fall webworm.
Canadian Entomologist, 8: There are many predators of the fall webworm, such as Monomorium minimumVespula spp. On average, males live for about 8 days. They wander from the plant hyphanria search for a protected location to pupate.
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. Applied Entomology and Phytopathology, 70 2: Management Back to Top Biological control. The adult fall webworm moth is bright white, with a hairy body.
Larix deciduasPinus spp. If trees are to be sprayed, treatments are best applied when tents are small, particularly if an insecticide is used that must be eaten, such as Bacillus thuringiensis. Quarantine pests for Europe. Plant health cunda survey on the following quarantine pests and diseases: BussUniversity of Florida.
American fall webworm in Kazakhstan. Zashchita i Karantin Rastenii, No.
Fall webworm – Wikipedia
Journal of Integrated Pest Management. Due to constantly changing labels, laws and regulations, the Extension Services can assume no liability for the suggested use of chemicals contained herein.
The bases of the front legs are orange or bright yellow. The egg mass is lightly covered with scales from the female’s abdomen.
There are two generations annually and occasionally a partial third. There is a certain risk of entry as eggs and larvae imported by amateur entomologists. Zashchita Rastenii Moskva5: On the overwintering possibilities for the fall webworm Hyphantria cunea Drury, Arctiidae, Lepidoptera in the German Democratic Republic. In Italy, where mulberry is the preferred host of H.
Pupation occurs in thin cocoons. Caterpillars of Eastern Forests. Natural Enemies of Insects Kunchong Tiandi7 2: Arctiidae in hyphanttria plantations of Turkey’s central Black Sea region.
They are able to fly several kilometres. Pupa The pupa has 12 characteristic appendages at the posterior end. Third instar larvae of the fall webworm, Hyphantria cunea Druryfeeding. Oxydendrum arboretum, Rhododendron spp.
Hyphantria cunea – Bugwoodwiki
Chionanthus virginicus ; Fraxinus spp. Silken tent created by larvae of the fall webworm, Hyphantria cunea Drury. Hosts Back to Top Part of Hyphanea cunea’s success hyphhantria a species can be attributed to the fact that its larvae are consummate generalists, capable of developing on a wide range of host plants. Entomologia Experimentalis et Applicata.