Neem oil insecticide works as a systemic in many plants when applied as a soil drench

Once, the products is in the plant’s vascular system, insect intake it during feeding. The compound causes insects to reduce or cease feeding, can prevent larvae from maturing, reduces or interrupts mating behavior and, in some cases, the oil coats the breathing holes of insects and kills them.

It is a useful repellent for mites and used to manage over 200 other species of chewing or sucking insects