Safe Soap Spray for Spider Mites, Mealybugs on Kalanchoe and Houseplants

Using Insecticidal Soap Effectively

For spider mites, mealybugs, whiteflies, and other soft-bodied pests on houseplants (including Kalanchoe blossfeldiana), use a commercial potassium-based insecticidal soap like Safer’s Insecticidal Soap.

Why Not Dish Soap?

Household detergents (Dawn, etc.) strip leaf waxes, causing burn. Horticultural soaps are formulated to kill insects without phytotoxicity.

Application Protocol

• Spray entire plant, especially leaf undersides, until runoff.
• Repeat every 2–3 days for spider mites (2-week cycle to break generations).
• For whiteflies, treat weekly for 3–4 weeks to catch emerging adults.
• Test on one leaf first if plant is sensitive.

Commercial insecticidal soap is safe for all houseplants when used as directed.