Neem oil is made from neem seeds. Azadirachtin is one of the most active ingrident. Azadirachtin reduces insect feeding and acts as a repellent. It also interferes with insect hormone systems, making it harder for insects to grow and lay eggs.
Azadirachtin deters some of the insects, such as locusts, from feeding and it interferes with the normal life cycle of insects, including feeding, molting, mating, and egg laying