NimBioSys Neem Oil is cold-pressed to ensure higher potency and quality than regular neem oil. This EPA-approved product works on as many as 200 different kinds of pests without harsh chemicals or toxins. This all-natural derivative of the neem tree works in a variety of ways; depending on the insect type, it can repel them, disrupt their growth hormones or prevent their ability to reproduce. Recommended for use against aphids, beetles, stink bugs, leafhoppers, whiteflies, mealy bugs, mites, weevils, scale and thrips. This product also includes azadirachtin, a naturally occurring compound that's extremely important for effectiveness.