Spider mites are difficult to control with crop protection chemicals, so proper timing, product selection and sprayer setup and operation are critical. Soybean producers should scout their fields and use the information contained in this article and a publication written by MSU’s Christina DiFonzo, titled Scouting and Managing Spider Mite in Soybean, to improve mite control. You can also go to http://www.msuent.com/ and read Spider Mite Warning – especially southern and central Michigan on the homepage under “Hot Topics.”
If mite populations and crop injury warrant a chemical treatment, mite control will be improved by equipping and operating a sprayer correctly. Follow the recommendations outlined below. A more detailed explanation of equipping and operating sprayers for insecticide applications is available in the MSU Extension article Equipping and operating sprayers to control insects and diseases in soybean.