Fall Webworms

— Written By
en Español

El inglés es el idioma de control de esta página. En la medida en que haya algún conflicto entre la traducción al inglés y la traducción, el inglés prevalece.

Al hacer clic en el enlace de traducción se activa un servicio de traducción gratuito para convertir la página al español. Al igual que con cualquier traducción por Internet, la conversión no es sensible al contexto y puede que no traduzca el texto en su significado original. NC State Extension no garantiza la exactitud del texto traducido. Por favor, tenga en cuenta que algunas aplicaciones y/o servicios pueden no funcionar como se espera cuando se traducen.

English is the controlling language of this page. To the extent there is any conflict between the English text and the translation, English controls.

Clicking on the translation link activates a free translation service to convert the page to Spanish. As with any Internet translation, the conversion is not context-sensitive and may not translate the text to its original meaning. NC State Extension does not guarantee the accuracy of the translated text. Please note that some applications and/or services may not function as expected when translated.

Collapse ▲

Fall webworms, one of our native insect pests, are a perennial nuisance and in some cases a destructive pest. I have seen lots of large nests lately in sourwood,

Fall webworm nest. Photo: SD Frank

Fall webworm nest. Photo: SD Frank

choke cherry, other Prunus species, sweet gum, and many others. These guys have been recorded on hundreds of plant species. This week I even heard reports of nests in redbuds and crape myrtles.

The best management in most cases is to prune out the nest or just poke it with a stick so parasitoids and birds can get in to kill the larvae. If insecticides become necessary you can find recommendations in the Southeastern US Pest Control Guide for Nursery Crops and Landscape Plantings.

Usually, insecticides are not necessary. Fall webworms upset people because they are ugly not because they damage trees that much. If it seems like fall webworms are around all the time, not just fall, it because they are. Here in NC fall webworms have at least two generations per year and are active throughout the summer.