Spider Mites After Tropical Storm Peanut Notes No. 167 2020

— 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 ▲

Spider Mite Status in Peanuts
Rick Brandenburg
Entomology Extension Specialist

July was a very hot month and some insects such as leafhoppers showed up in higher numbers. I think most of those populations have declined, but some fields still have healthy populations. Due to the wide range of rain we saw in July, some fields are very dry and spider mites have begun to show up and some fields have really high populations and visible damage. We’ve all seen rainfall set a mite population back. However, a tropical storm or hurricane can REALLY knock the infestation off its feet and it’s just not the direct effect of the rain. Research conducted in North Carolina decades ago demonstrated that two consecutive days of cooler temperatures (below 87 F), cloudy conditions, and some rain over a 40 plus hour time period will almost always result in a rapid decline of spider mites. That’s what is happening right now. This is due to the rapid growth of a fungal pathogen that attacks mites under those cooler, wet conditions. Virtually the whole mite population can be wiped out.

Once the storm passes and things dry out a bit, don’t assume that field where mite damage was occurring is still a problem. Nature may have taken care of it for you.