General Hydroponics GH2021 Azamax Antifeedant and Insect Growth Regulator, Quart AzaMax is a natural product with a broad spectrum of pest control It contains Azadirachtin A and B as active ingredients and more than 100 limonoids from its special technology An antifeedant and insect growth regulator which control pests through starvation and growth disruption Effectively controls spider mites, thrips, fungus gnats, aphids, whiteflies etc OMRI listed and available in 1-quart