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. Bulk shipment available when ordering 50,000 or more. Similar to persimilis, handles temperatures up to 100 degrees, tolerates 40% humidity at 70 degrees F (requires more moisture as temp. increases). Recommended for warm greenhouses (tall plants), interiorscapes with artificial lighting. ***Must be shipped Next day Air. ***For orders over 1 unit please call to place order as system not able to figure freight on multiple orders***