Azatin® O is a biological insect growth regulator (IGR) used to control the larval stage of a broad-spectrum of greenhouse and nursery pests. Azatin O is OMRI listed, is soft on beneficials, and carries a 4-hour REI. It contains 175 grams of the active ingredient azadirachtin per gallon. It may be used for insect control on all crops such as ornamentals, vegetables, herbs, and berries, grown in the greenhouse, nursery, interiorscape, and in hydroponic growing situations.