Make an all-natural pesticide by combining rhubarb leaves, water and dish soap or by mixing garlic, hot peppers, onions and water. A tomato leaf mix and different types of salt sprays are other types of homemade all-natural pesticides.
To make an all-natural pesticide, boil 1 cup of rhubarb leaves in 6 1/2 cups of water for 20 minutes, and strain the water. Add 1/4 cup of either liquid dish detergent or soap flakes. This pesticide works especially well against June beetles, aphids and spider mites. As rhubarb leaves are poisonous, don't use this pesticide on any food-bearing plants.
Make another type of all-natural pesticide by blending 2 hot peppers, 1 large onion, 1 bulb of garlic and 1/4 cup of water until it forms a mash. Pour 1 gallon of near-boiling water over the mash, let it stand for 24 hours, and then strain. To use the pesticide, spray it directly onto roses, azaleas or vegetables, or bury the mash in the ground. This pesticide is good for aphids, grasshoppers, and any type of chewing or sucking insect.
To make a simple pesticide out of tomato leaves, crush the leaves from a single tomato plant, and soak them in water for two days. Strain the water, and pour it into a spray bottle to deter grasshoppers and white flies.