Aphid Destoyer is a breathable package of 250 live Ladybugs, Hippodamia Convergens. The Ladybugs primary target pest is Aphids, although they will eat Soft Scale, Whitefly Pupa, Thrips, Spidermite when Aphids are not available. The Aphid Destroyer should be applied as soon as possible after purchasing. If storage is required keep at 6-10 degrees celcius or 44-50 degrees fahrenheit. Introduce the ladybugs on the infected plants in the evening or early morning to avoid them flying away. Lightly mist the plants to be treated with water before releasing. If it is possible you can cover the plants with a light pillowcase or other breathable cover to keep the ladybugs contained on your plants for a longer period of time (3-5 days). I bag (250) covers up to 10 medium plants or 3 trees.