To create an effective insecticide spray for your garden, finely chop 2 garlic cloves and combine with 2 teaspoons of mineral oil. Let the mixture soak for at least 24 hours. Add a quick squirt of liquid soap to 1 pint of water and combine with the garlic mixture. Stir thoroughly and strain with a coffee filter into a glass jar for storage. Combine 1 tablespoon of the solution mixture to a spray bottle full of water. Test the solution on a single leaf of any delicate plants. If no damages occurs, thoroughly spray garden plants. Repeat every few days. Garlic is also an antifungal and may provide additional benefits to your garden.