Mite Predator, Phytoseiulus persimilis - 10,000Effective control of two spotted spider mites! Release Phytoseiulus persimilis at first sign of mite infestation. Once leaf damage is serious, more than 4 mites per leaf, achieving control is more difficult. For heavy infestations, remove the most affected plants and use a knock down spray (see Neem Oil). Wait 48 hours after application of a knockdown spray to release predatory mites. P. persimilis are red in color relative to the pest mites they feed