Greenhouse vegetable integrated pest management programs in Canada recommend the use of these midges, often in conjunction with releases of the parasitoid wasp, Aphidius matricariae , for aphid control. The larvae are most common from mid- to late summer in the field. Mass released aphid midges have adequately controlled aphids in small backyard garden trials. The onset of shorter daylength toward the end of summer can induce diapause. This can be averted in the greenhouse by nocturnal use of 100 W incandescent light bulbs spaced 22 m apart when the canopy is open, with closer spacing when the canopy is dense.
Most sprays are toxic to midges.
Adults may be more susceptible than larvae. Conservation Aphid midges are native to much of North America and will overwinter, although winter mortality may be high. High humidity and shelter from high temperatures and strong winds will encourage midge activity. In greenhouse environments, adult midges are most effective at 20-26 degrees C with high humidity. Adults also need a source of honeydew for feeding and to improve egg laying.