In the cooler months of winter, the females overwinter and numbers are low, but during the warmer months of spring mite numbers can build up rapidly. Control of two-spotted mites Miticides are registered for use in strawberry crops, but should be managed carefully. Repeated applications of the same miticide can result in the build-up of resistance. Biological control is possible using the predatory mite, Phytoseiulus persimilis . It is commercially produced and can be introduced into the strawberry crop to control two-spotted mites with some success.
Some insecticides are safe to use in conjunction with predatory mites in the crop.
Cultural control techniques can also be used in managing mites. This includes keeping plants healthy so they can tolerate larger populations with less damage. Mowing or removing weeds helps minimise infestation by eliminating alternative hosts for the mites. Treating infested runners may prevent early infestation of the crop. Caterpillars Various caterpillars attack strawberries over the growing season and cause the most damage when they feed on flowers and fruit.