Grubs & Other Root Feeding Pests
go.ncsu.edu/readext?646748
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 ▲Grubs and other root-feeding insects can cause poor seedling growth and even death. Diagnosing what is wrong requires pulling up the tree and examining the roots during the growing season.
Online Information
CTN 8: Control of Root-Feeding Insects in Fraser Fir Christmas Trees – fact sheet on white grubs, black vine weevils, and root aphids
Additional Pests to Recognize – including root aphids
Grubs – Facts at a Glance – quick facts about white grubs (1-page pdf version with photos)
White Grubs in Turf – NC State Extension information on white grubs
Entomology Insect Notes: Black Vine Weevil – biology and control of black vine weevils
Photo Gallery
-
- Poor, chlorotic growth and seedling mortality can be signs of grubs
-
- All the feeder roots have been eaten off of this seedling root system
-
- White grubs are typically curled up in a C-shape
-
- Green June beetle grubs appear to ‘crawl’ on their backs. They do not feed on tree roots.
-
- Root weevils don’t have legs like white grubs
-
- Trees with root aphid feeding are often chlorotic and grow poorly
-
- Root aphids feeding on a root
-
- Root aphids feeding on fine feeder roots
-
- Close-up of root aphids
-
- An individual root aphid