What Are the Dangers of Insecticidal Soap?

Destructive insects are pests in home gardens. According to the University of Florida Extension Service, people are often concerned about using chemical pesticides for insect control. Insecticidal soaps are a safe alternative.

Function

Insecticidal soaps kill pests by washing away protective body coatings and breaking down cell membranes. The soaps are effective on vulnerable insects and mites.

Significance

Insecticidal soaps are effective only when they have direct contact with insects. When the soaps dry, they are biodegradable and have no residual activity.

Considerations

Insecticidal soaps cause spotting or leaf scorching on some plants. The University of Connecticut suggests spraying a small plant band as a test.

Types

Insecticidal soaps are sold commercially and can be homemade. Use caution when following homemade recipes as detergents have changed over the years and now have more hazardous ingredients and chemicals. Read detergent labels for ingredient dangers.

Warning

Insecticidal soaps, like other soaps and detergents, may irritate skin and eyes. When they are swallowed, they may cause vomiting and gastric distress. Avoid direct contact.

References

• University of Florida: Clean Up Pests with Soap
• University of Connecticut Integrated Pest Management

Resources

• Washington State University: Guidelines for Insecticidal Soap