Kills insects on contact. Potassium salts (insecticidal soap) weaken the insect’s protective outer shell. Pyrethrins attack the insect’s nervous system. For control of aphids, mealybugs, spider mites, whitefly, soft brown scale, psyllids, rose or pear slugs and earwigs on houseplants, vegetable and fruits. Can be used right up to day of harvest!