This EPA-approved neem oil product works to control over 200 different kinds of insect pests without harsh chemicals. NimBioSys is an all natural extract of the neem tree and works in a variety of ways; depending on the insect type, neem can repel them, disrupt their growth hormones, or prevent their ability to reproduce. Natural neem oil is effective for use against aphids, beetles, stink bugs, leafhoppers, whiteflies, mealy bugs, mites, weevils, scale and thrips. Our 100% natural neem oil insecticide product includes azadirachtin (3000ppm), a naturally occuring compound that's extremely important for effective pest control. For all uses, mix ratio of 1:100-1:200 parts NimBioSys with water (0.5% to 1.0%). Apply at 7-14 day intervals at onset of pests, and then as needed.