Ladybugs! The most famous beneficial insect! Ladybugs can eat up to 50 aphids a day, but they will also devour scale, mealy bugs, boil worms, leafhopper, and corn ear worm. They only eat insects and do not harm vegetation in any way!
Release Instructions: You should always release ladybugs after sundown so that they don't fly away. At night, they will scour the area for food and stay as long as there is something for them to eat. The more they have to eat the the more eggs they'll lay and the more insect eating larvae you'll get. It's best if the area was recently watered in. Ladybugs have a tendency to crawl up and towards light. So, let them goin smaller groups at the base of plants and shrubs that have pests, and in the lower part of trees.
You can keep ladybugs in the refrigerator after you get them (35-50 degrees F.) and release them as needed.