Some effective homemade pest sprays include garlic oil spray, tomato leaf spray and hot pepper spray. Other homemade pest control methods include the use of soap spray or red pepper spray.
Garlic oil spray is a homemade pest spray that is natural, safe and effective. To make garlic oil spray, put 3 or 4 cloves of minced garlic into 2 teaspoons of mineral oil and let the mixture sit overnight for about 8 hours. Strain the garlic out of the mixture and add 1 pint of water and 1 teaspoon of dish soap. Store the spray in a jar and dilute it before use by adding 2 teaspoons of the garlic oil to 1 pint of water. Garlic oil spray is useful for pests such as aphids and flea beetles.
Hot pepper spray is made by combining 2 tablespoons of hot pepper sauce, 1 quart of water and a few drops of dish soap. Let the mixture sit overnight. The compound capsaicin in hot peppers gives the spray a hot, spicy aroma that repels insects, especially mites and whiteflies.
Tomato leaves are poisonous to many insects because they contain alkaloids. To make tomato leaf spray, soak 1 or 2 cups of chopped tomato leaves in 2 cups of water and let the mixture sit overnight. Strain the tomato leaves out of the mixture and add another 1 or 2 cups of water to complete the spray.