Safer Yard & Garden Insect Killer 30 ounce ready to use spray. Contains pyrethrins .012%, potassium salts of fatty acids 1.015%. Kills aphids, caterpillars, leafhoppers, mealybugs, spider mites, thrips, whiteflies and many other pests. For use on roses, flowers, vegetables, herbs and ornamentals. Can be used up to day of harvest. An environmentally friendly and safer solution. Kills insects on contact, gentle on plants. Potassium salts (insecticidal soap) weaken the insect's protective outer shell. Pyrethrins attack the insect's nervous system.