Treat when plants along field margin show discoloration and mites are present. On determinant soybean, do not apply more than one application after pod set. Do not apply more than 6 pints per acre per season. This is an inorganic insecticide that can be used to control mites. Spider mite infestations can begin after extended hot, dry periods in the summer, usually in late July and August.
Infestations usually begin along the edges of fields and progress into the field.
Spraying the edge after early detection can prevent the need to treat the entire field. Thimet 15G and 20G also are registered for at-planting treatments, but it is better to treat only if necessary during the growing season. Do not graze or feed vines to livestock. Do not apply more than 0.48 pt per acre per season. Do not graze treated areas or harvest for forage or hay.