Lacewings stay where you place the cards in your garden, and the larvae are voracious feeders on those pesky bugs. The larvae are voracious predators used to control a wide range of soft-bodied pest insects. Green Lacewings larvae eat aphids, mealybugs, spider mites, leafhopper nymphs, moth eggs, scale, thrips, and whiteflies. The best time to release is early morning or late afternoon. The cards can be stored at no lower than 50°F for up to 48 hours.
The eggs are on perforated hanging cards, hang the cards, from the hole in the card, near the underside of leaves in the target area.