This EPA-approved neem oil product effectively controls over 200 types of insect pests without using harsh chemicals. NimBioSys is a completely natural extract from the neem tree that operates in multiple ways; depending on the insect type, neem can repel them, interfere with their growth hormones, or inhibit their ability to reproduce. Natural neem oil is highly effective against aphids, beetles, stink bugs, leafhoppers, whiteflies, mealy bugs, mites, weevils, scale, and thrips. Our 100% natural neem oil insecticide contains azadirachtin (3000ppm), a naturally occurring compound crucial for effective pest control.