Poison-free pest control for outdoor and indoor applications. Controls gnats, black flies, midges, mites, aphids, thrips, whitefly, ants, mosquitoes and other pests. The liquid concentrate's general use rate is 1.7-2.6 fluid oz per gallon of water. For hydroponic systems add directly to hydroponic reservoirs at 1-1.5 oz per 10 gallons of solutions. Add every 2 weeks or at nutrient solution change.