ARBICO Organics Phytoseiulus Persimilis Beneficial MitesA great mite predator for spider mites in humid greenhouses and for dense field crops. Ships FREE via Overnight methods on Tuesdays Only. Minimum 7 day processing prior to shipment. Effective 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