A broad-spectrum control. The active ingredient of BioNeem is Azadirachtin, made from seeds of Neem trees. It interrupts insects' growth cycle causing death. Controls 30 common pests including grasshoppers, whiteflies, mealybugs, caterpillars, aphids, and webworms. Low toxicity rating. No known insect resistance since it was developed 12 years ago. Harmful to ladybugs. 16 oz concentrate. This product is Restricted by the OMRI organic standards guidelines. Consult your local chapter for complete information.