If you have trees, at one time or another you’ve probably had problems with bagworms, webworms, and tent catepillars. But before you spray your yard with toxic chemicals, consider using a tiny, microscopic beneficial insect instead. Trichogramma wasps are teeny, tiny flying creatures that won’t harm people, pets, or plants. Adult trichogramma wasps feed on pollen and nectar. It’s their young that wreak havoc on harmful worms and catepillars because trichogramma wasps parasitize the eggs of moths, worms, and butterflies (Lepidoptera). In fact, they are one of the most effective beneficial insects known for controlling lepidopterous insects.
 
Each Tab comes with approximately 3300 eggs
 
For more information:
https://www.marshallgrain.com/post/trichogramma-wasps-the-perfect-beneficial-insect