Aphidoletes aphidimyza. The small orange larvae inject a paralyzing toxin into aphids then suck the body fluids leaving a shriveled skin. The adult is a small, fragile fly (1/16 in. long) that lays its eggs among aphid colonies at night. Females live 10 days and lay up to 250 eggs. Adults will start to emerge within a week if kept at room temperature (21 deg. C). Insect soaps will kill these predators! Release when aphids appear. Will overwinter in greenhouse if plant substrate is not changed and no harmful disinfectants are used. Midges are sent as pupae in moist cotton. APPLE ORCHARDS: Use 3-5 midges per tree in early May to mid-June to control aphids. Repeat if cold or windy weather occurs during initial release period. GREENHOUSE PEPPERS/TOMATOES: Use 1 midge per 2 plants (peppers), 1 midge per 6 plants (tomatoes) weekly for 2-4 weeks early in season. Repeat if aphids reappear later in the season. HOME GREENHOUSE OR GARDEN: 2-3 releases of 420 midges at 2 week intervals will cover 400 sq ft. This size has 1000 ea. ***Add 2nd Day Air charges for all shipments. .*** ***Midges ship on Wednesdays only. Order must be placed by Friday to ship on the following Wednesday.***