Comments on Mites From 2019 Peanut Information Series AG-331 Peanut Notes No. 73 2019

— Written By

Questions about mites are beginning to come in. Weather and climate seem to be erratic, and even though we are very dry now, in 10 days we could be wet. However, we are starting out very hot and very dry throughout the coastal plain of North Carolina. The following information is from Chapter 5 in 2019 Peanut Information (Rick’s chapter.)  Rick will provide more information as we move through June on how and when to manage mites and other arthropods in peanuts.

Preventing Insect and Mite Problems

Chapter 5, 2019 Peanut Information

Many things can be done to help prevent damaging insect and mite infestations. Where possible, consider the following suggestions:

Do not treat on a schedule or because a neighbor is spraying.

Scout fields and treat only as needed around fields in fall or early spring.

Maintain an area clear of weeds and briars around fields during the early growing season.

Do not mow weeds around fields from late June through early September.

To reduce the probability of spider mite buildup, avoid using foliar insecticides in July and August unless needed to control damaging insect infestations. The fewer insecticide applications used, the lower the probability of creating a pesticide-induced outbreak of mites. Using the leafspot advisory for leafspot applications will help reduce the likelihood of spider mite outbreaks. Avoid unnecessary applications for rootworms. Rootworms treatments often cause spider mite outbreaks.

Avoid moving workers and equipment from mite-infested areas to non-infested areas.

Avoid planting peanuts immediately adjacent to fields of sweet corn. Spider mite populations often disperse into peanuts as the corn matures.