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Green Lacewing larvae, ideal for controlling aphids, are commonly used as generalist predators for garden and farm insect control. Predatory in the larval stage, Green Lacewing feed on a wide range of soft-bodied insects in various life stages. Lacewing larvae are preferred to Assassin Bugs and Minute Pirate Bugs in some growing environments as they are less likely to feed on other beneficial insect populations.
Green Lacewing larvae paralyze their prey with venom and feed on the body fluids of the pest. Each lacewing larva will devour 200 or more pests or pest eggs per week during their two to three week developmental period. Lacewing adults can survive the winter in highly sheltered areas; however, most overwintering occurs as pupae or eggs.
Optimal Temperatures: 67-90°F, RH >30%
Preferred Food: Aphids, Mealybugs, Spider Mites, Leafhopper Nymphs, Caterpillar Eggs, Immature & Soft Scale, Thrips, and Whiteflies.
For best results, cultivate habitats that encourage adult lacewing to reproduce and remain in the release area. Nectar, pollen, and honeydew stimulate their reproductive process. If these food sources are not available, adults may disperse. Consider planting annual and perennial plants (Good Bug Power Blend) to provide pollen and nectar throughout the year. ARBICO's Good Bug Power Meal provides an artificial diet for the adults and contains necessary nutrients for reproduction. Studies have shown that spraying field crops with supplemental food sources increases egg laying considerably.
Release Rates: Release Green Lacewing larvae at a rate of 2 larvae per 20 pest insects, 2 larvae per square foot or 10,000-50,000 larvae per acre. Larvae should be released immediately upon receipt. Treat severe infestations using integrated pest management methods. It may be beneficial to use a knockdown spray prior to releasing beneficial insects in these cases.