Ed Rosenthal�s Zero Tolerance eliminates plant pests. This herbal Pesticide is made from the highest quality oils of cinnamon, clove, rosemary, and thyme. Zero Tolerance not only stops pests in their tracks, it smells great too! It�s made from pure food grade ingredients and is plant, people and pet friendly. Zero Tolerance is bio-degradable and environmentally safe so you can use it without worry. Works in outdoor gardens, greenhouses, and indoor hydroponic systems. Zero Tolerance not only kills existing pest infestations fast, it repels against new attacks. For fruits and vegetables, Zero Tolerance can be applied up to 5 days before harvest. Zero Tolerance eliminates Spider Mites, Aphids, Thrips, Whiteflies, Ants, Scale, Gnats, Root Aphids, and Caterpillars. Available in quart or gallon size of Ready-to-Use formula, or quart and pint size concentrate.