Spray leaves with a solution of rosemary oil or rosemary oil-based pesticide. Rosemary essential oil is effective against spider mites and does not harm the beneficial predatory mite, Phytoseiulus persimilis.
How to Make Homemade Insecticidal Soap for Plants tablespoons soap to 1 gallon of water OR 1 heavy tablespoon soap to 1 quart of water-(add vinegar for downy mildew) for controlling aphids, whiteflies, spider mites and mealybugs on my container herbs.
How to Prevent Spider Mites on Houseplants. Spider mites are tiny arachnids that can sometimes be found feeding on the chlorophyll, sap, and other plant fluids from within your plants. When your plants have been infested with spider mites,.