Eggs packaged in cups or bags of 1,000, 5,000 or 10,000 eggs per unit. Cups contain only the eggs and bags contain rice hulls as a carrier. Tiny larvae eat mites, mite eggs and insect eggs. Within about a week they start eating aphids. Release 2,000-3,000 eggs per acre every 2 weeks, 2-4 times OR 1 per 20 pests OR 2 per sq ft in greenhouses. Release when hatching begins: incubate cups or bags (ideal conditions 80º F, 60% RH), check each morning until tiny larvae appear in 1-4 days, sprinkle on plants directly or into paper cups placed in foliage.