Defenuron is an obsolete herbicide. Its formula is C8H10N2O. It is an urea herbicide and was once produced as a wettable powder to control undesirable grasses and broad-leaved plants in a variety of crops. It enters plants via diffusion and moves through the xylem. It is highly water-soluble, is of low toxicity to fish, and does not pose a significant health hazard to mammals or to Japanese quail.
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