The twospotted spider mite is often introduced on infested bedding and house plants. When purchasing new plants, carefully inspect the lower leaf surface for any signs of mite activity. New house plants should be quarantined from other plants until you are sure that no mites are present. However, the most commonly sold predators are other types of mites. Be sure to check listings to determine which species is appropriate.
Some species are host specific and each predator works better under different weather conditions.
If predators are used, do not apply pesticides that will kill them. The oils, both horticultural oil and dormant oil, can be used. Horticultural oils can be used on perennial and woody ornamentals during the summer at the 1 to 2 percent rate. The insecticidal soaps are useful in the warm season. Remember that mites are very tiny and soaps and oils work by contact only.