Avenger Organics, Avenger Weed Killer Concentrate, For Organic Gardening, 32 oz FAST ACTING  Kills weeds with visible results in less than 2 hours. Works in cool & cloudy conditions (as low as 40 Deg F) SAFE - Highly biodegradable  dissipates quickly, it is non-toxic and can be used in areas near to people, pets and wildlife EASE OF USE - Emulsion technology enables visual references of your spray target. Sprayed areas can be planted within hours of use ORGANIC HERBICIDE - Made from oranges, lemons and other citrus fruits. A pleasant citrus aroma. Does not stain brick, concrete or pavement EFFECTIVE - The active ingredient d-limonene (citrus oil) naturally strips away the waxy plant cuticle, causing it to dehydrate and die