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. Recommended for low density spider mite populations (slower feeder). Needs minimum 60% relative humidity, can tolerate up to 90 degrees F. Recommended for greenhouse, corn, berries ornamentals and interiorscapes. Good for outdoor use. ***Must be shipped Next Day Air. *** For orders over 1 unit please call to place order. System not able to calculate freight on multiple orders***