Check the listing for details. Defendor Herbicide quart (32 oz). Condition: New. Listed at 242.79 USD. Defendor specialty herbicide gives you early cold season control of unattractive dandelions, clover and other annual and perennial broad-leaf weeds. The herbicide provides lawn care contractors and golf course managers a first crack on weed control and additional time to complete the first applications of the season. Labeled for use on turf during both the cool and warm seasons, the product offers strong post-emergence weed control in a adaptable formulation. Defendor, with its active ingredient of florasulam, is absorbed via the leaves, shoots and roots of susceptible weeds. It works as an ALS inhibitor, stopping enzyme synthesis and cell division in the weeds. When applied early in the season, development of susceptible weeds will be checked immediately and the weeds will die within two to four weeks. The herbicide provides activity at extremely low use rates (0.013 lb. a.i./A) when compared with other post-emergence herbicides. In addition, when applied in early spring, the product prevents dandelions from growing, greatly reducing callbacks, increasing customer satisfaction, and save time and money. Track Page Views WithAuctiva's Counter