Diuron Herbicides ares broad-spectrum herbicides used for weed, grass, and brush control on highway shoulders. It stops photosynthesis, which in turn causes plants to stop growing. It also inhibits seed germination. Diuron is the only active ingredient in the herbicide products Karmex DF - 80%, Diuron DF - 80%, Diuron 4L and Direx 4L- 40%. The product Krovar is a combination of diuron and the herbicide bromacil. These products can be applied as pre-emergents, that is, to control vegetation before it begins to grow, in the maintenance of gravel shoulders.
Herbicide products containing Diuron are state RESTRICTED USE PESTICIDES, and require an applicator's license for purchase within the state of CO.
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