Among the safe methods of controlling insect pests are two homemade pest controls:
You may want to get an inexpensive blender just for this purpose, the “bug juice” method requires collecting about ½ cup of the insect pests and blending them with 2 cups of water. After liquefying, strain and dilute ¼ cup of the pureed insects with 1 gallon of water in a hand sprayer. Freeze the remainder, marking it clearly.
Another spray is made by pureeing ¼ cup hot pepper, ¼ cup garlic cloves, and 2 cups of water in a blender. Strain and dilute in the same way as the “bug juice”. (Ortho Books All About Herbs)