How to Use Insecticidal Soap in the Garden

Learn how to use insecticidal soap to combat soft-bodied pests such as aphids, whiteflies and more.


| April 24, 2013



Insecticidal Soap

Under good storage conditions, insecticidal soap products may last five years or more.


Photo Courtesy Safer Brand

This article is part of our Organic Pest Control Series, which includes articles on attracting beneficial insects, controlling specific garden pests, and using organic pesticides.

What Is Insecticidal Soap?

The fatty acids in insecticidal soaps break down the protective cuticles of soft-bodied pests such as aphids, so they quickly become dehydrated and die. Insecticidal soaps provide an effective way to control aphids and other soft-bodied insects if no beneficials are present to do the job.

Which Pests Does Insecticidal Soap Control?

Aphids, mealybugs, spider mites, psyllids, thrips and whiteflies are the most common pests controlled by insecticidal soap. Insecticidal soap may also have some activity against very young earwigs, grasshoppers, harlequin bugs, leafhoppers, sawfly larvae, and squash bugs provided the larvae become well soaked with soap solution.





Crowd at Seven Springs MOTHER EARTH NEWS FAIR

MOTHER EARTH NEWS FAIR

Sept. 15-17, 2017
Seven Springs, PA.

With more than 150 workshops, there is no shortage of informative demonstrations and lectures to educate and entertain you over the weekend.

LEARN MORE