NATRIA Insecticidal Soap ready-to-use sprayer is an OMRI-listed, multi-purpose insect killer that controls listed insect pests on vegetables, houseplants, ornamentals and fruit and nut trees. Insecticidal Soap is an effective insect control against adult and immature stages of pests, such as Adelgids, Aphids, Lace Bugs, Mites, Mealybugs, Whiteflies and more. And it protects against Powdery Mildew. It is fast acting and easy to use. Simply spray plants thoroughly, including the undersides of leaves at the first sign of insects or mites in the Spring, early Summer and Fall. Reapply every 7 to 14 days as needed. Best of all NATRIA Insecticidal Soap can be used up to and including day of harvest. This ready-to-use bottle measures 1 gallon. Active Ingredient: 1% Potassium salts of fatty acids. EPA Registration Number: 67702-21-92564. NATRIA. Results Done Right.