Made from the essential oil extracted from the thyme herb. Thyme Guard it is a 100% biodegradable broad spectrum contact and systemic liquid organic bactericide, fungicide, and insecticide for use in all crops, turf and ornamentals. Dilute into water at a rate of 0.5% (2 quart/100 gallons) to 0.125% (1 pint/100 gallons). Thyme Guard is tank mixable with most other chemicals. Do not mix with peroxides and/or sulfonated. Can also be used at any me including on harvest day.