An organic insect and disease control material made from the juice of garlic and hot peppers such as jalapeno, habanero, or cayenne. This is one of the few preventative controls that I recommend. However, its use should be limited because it will kill small beneficial insects. It is effective for both ornamental and food crops.
To make garlic/pepper tea, liquefy 2 bulbs of garlic and 2 hot peppers in a blender 1/2 to 2/3 full of water. Strain the solids and add enough water to the garlic/pepper juice to make 1 gallon of concentrate. Use 1/4 cup of concentrate per gallon of spray. To make garlic tea, simply omit the pepper and add another bulb of garlic. Add two tablespoons of molasses for more control.