IPM Scouting in Woody Landscape Plants
Christmas trees
Field crops
Fruit
Home and yard
Nursery and landscape
Turfgrass
Vegetable
Diagnostic Services
Soil/Plant Nutrient Lab
Enviro-weather
Regional IPM Center
Pesticide safety
Organic: New Ag Network
Invasive species
Sustainable ag & food systems
| Fall webworm - Hyphantria cunea | ||||||
| IPM scouting in woody landscape plants > fall webworm | ||||||
| Fall webworms feed on at least 88 different species of plants in the U.S. Favorite host plants include black walnut, wild cherry, hickory, crabapple and birch. Larvae pass through as many as 11 instars on their way to developing into adults. They create silken tents on the ends of the branches. Look for developing larvae as goldenrods begin to bloom. Webworms have many natural enemies including birds, predaceous bugs and parasitic wasps. Leaving the webs intact allows populations of their natural enemies to develop Management: Because they occur so late in the growing season, there is usually no need to control webworm. Unsightly webs can be pruned out or dislodged with a strong stream of water. Unlike eastern tent caterpillars, these caterpillars stay in the web while feeding, so pruning the webs at any time of day will eliminate them. |
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| This information was developed from A Pocket IPM Scouting Guide for Woody Landscape Plants by Diane Brown-Rytlewski. Purchase this in a pocket-sized guide for reference in the orchard from MSU Extension (publication E-2839). | ||||||
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