Beneficial insect for spider mite control. Package of 1000 ea. These predators feed on a wide range of spider mites, both immatures and adults. Use 1 predator per 25 pest mites or 2 predators per infected plant. Greenhouse rate is 1 predator per sq. ft. of planted area plus 10 predators per mite-infested leaf. 1000 ea are shipped. Needs 40-90% humidity. Slightly larger than spider mites, thisis a mix of 3 preditory spider mites: Mesoseiulus Longipes, Neoseiulus Californicus and Phytoseiulus Persimilis. Recommended for greenhouses, interiorscapes,  berries, ornamentals, outdoors, and field strawberries in coastal areas. ***Must be shipped Next Day Air. ***For orders over 1 unit please call to place order as system is not able to figure freight correctly***