Control Bagworms Late May & Early June
go.ncsu.edu/readext?607257
en Español / em Português
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.
Português
Inglês é o idioma de controle desta página. Na medida que haja algum conflito entre o texto original em Inglês e a tradução, o Inglês prevalece.
Ao clicar no link de tradução, um serviço gratuito de tradução será ativado para converter a página para o Português. Como em qualquer tradução pela internet, a conversão não é sensivel ao contexto e pode não ocorrer a tradução para o significado orginal. O serviço de Extensão da Carolina do Norte (NC State Extension) não garante a exatidão do texto traduzido. Por favor, observe que algumas funções ou serviços podem não funcionar como esperado após a tradução.
English
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 ▲Did you notice cone shaped bags hanging from your conifer shrubs or trees last fall? Now is the time to control bagworms. As they say, the early bird gets the worm! The female will lay 300 to 1,000 eggs in each bag, which means they can produce large numbers of offspring in early summer.
Bagworms are in the bag all winter and emerge in spring. Late May and early June are a good time to control the bagworm caterpillar. Determine at what level of infestation you want to spray. Sometimes you can tolerate a few bagworms, but if the population gets out of control this is the time to control them. Apply a pyrethroid such as permethrin or bifenthrin as they have a longer residual life than other insecticides. Remember to not spray any blooming plants as you can inadvertently kill pollinators. Bacillus thuringiensis or BT is a natural control, as it only kills caterpillars. It may need to be re-applied. Always, read and follow label directions. For complete information on chemical control, refer to the North Carolina Agricultural Chemicals Manual. It is available online as a free download.
If you miss spraying in late May-early June, the next best method of control is to remove the bags when they develop. Be sure to carefully cut the silk band that holds the bag on the stem. If you do not it may remain and girdle the branch.
Often native parasitic wasps that will control the bagworms. This natural control often keeps the bagworm population at a minimum, which is often tolerable. Your other option is to select plant material that is not susceptible to bagworms. The preferred conifer plants for bagworms are Leyland cypress, arborvitae, cedar, juniper and pine, but they can feed on other species.
For more information or if you have specific questions about plants in the landscape, garden, or trees, contact Shannon Newton by email at Shannon_Newton@ncsu.edu or by phone at 910-277-2422 at the Scotland County office or 910-875-3461 at the North Carolina Cooperative Extension of Hoke County office.