The soap suffocates the wasps or hornets and the peppermint or tea tree scent prevents them from coming back and rebuilding nests. Peppermint or Tea Tree Oil Castile Soap SprayĪdd one cup of tea tree oil or peppermint liquid castile soap to a hose end sprayer.Īttach to hose and spray directly at nest until it disintegrates or falls down. Works on mites, aphids, whiteflies, beetles, etc. Mix 1 ½ teaspoons mild liquid soap (castile) with 1 quart of water.Īpply early in morning or in evening, not during the heat of the day. Shake, and spray directly on affected plants To apply, mix 2 teaspoons of oil and soap mix with 1 quart of water. Mix 1 cup vegetable oil with 1 tablespoon liquid soap (such as castile soap) Spray directly on affected foliage (avoiding heat of the day) Repels (doesn’t kill) flies, fleas, mosquitoes, cabbage looper caterpillars, aphids, squash bugs, white flies, ants, beetles, spiders, chiggers, ticks, and roaches. Mix equal parts (about 10 drops) peppermint, thyme, and rosemary essential oil in a spray bottle filled with water Peppermint, thyme, and rosemary oil repellent Avoid spraying during the heat of the day when the combination of sun and oil can burn foliage. Spray early in the morning or in the evening. To prepare for use, mix 2 teaspoons neem oil with 1 quart of water (option to mix 1 teaspoon mild liquid soap) Won’t harm bees, butterflies, and lady bugsĮffective against many common insect pestsĮffective against powdery mildew and other fungal infections Needs to be reapplied after rain (or heavy watering)ĭisrupts the life cycle of insects in any stage (egg, larvae, or adult)īiodegradable, nontoxic to pets, birds, fish, and other wildlife Alternative insecticides for the yard and garden:Īffects crawling insects, such as snails and slugsĭust ground around plants with powdered diatomaceous earth (can also sprinkle directly on affected leaves) Try these alternatives to pesticides that are effective in deterring pests without negatively affecting our health or the ecosystem’s health. Need to take more drastic pest management measures? Do so naturally without turning to harsh chemicals. Salt Lake City Sustainability Contact SLCgreen (801) 535-6470 | SLC.gov Comprehensive Annual Financial Reports (CAFR).
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