Butachlor

BiochemistryInhibits cell division by blocking protein synthesis; more recent research suggests chloroacetamides may inhibit synthesis of very long chain fatty acids (J. Schmalfuss et al., Abstr. Meeting WSSA, Toronto, 2000, 40, 117-118; P. Böger, Abstr. III Int. Weed Control Congr., Brazil 2000). ModeofactionSelective systemic herbicide, absorbed primarily by the germinating shoots, and secondarily by the roots, with translocation throughout the plant, giving higher concentrations in vegetative parts than in reproductive parts. UsesUsed pre-emergence for the control of annual grasses and certain broad-leaved weeds in rice, both seeded and transplanted. It shows selectivity in barley, cotton, peanuts, sugar beet, wheat and several brassica crops. Effective rates range from 1.0-4.5 kg/ha. Activity is dependent on water availability such as rainfall following treatment, overhead irrigation or applications to standing water as in rice culture. PhytotoxicityNon-phytotoxic to rice, cotton, barley, wheat, peanuts, sugar beet, and some brassicas. FormulationtypesEC; GR