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Herbicides for postemergence control of annual grass weeds in seedling forage grasses



Herbicides for postemergence control of annual grass weeds in seedling forage grasses



Weed Science 37(3): 375-379



The control of three summer annual grass weeds with herbicides during establishment of forage grasses was studied near Concord and Mead, NE [USA] in 1984, 1985, and 1986. Three cool-season forage grasses, intermediate wheatgrass, tall fescue, and smooth bromegrass, and two warmseason grasses, big bluestem and switchgrass, were included. The control of three major summer annual grasses, green foxtail, barnyardgrass, and large crabgrass, was excellent with fenoxaprop at 0.22 kg ai/ha. Slight to moderate injury to cool-season forage grasses and severe injury to warmseason grasses were evident. Sethoxydim at 0.22 kg ai/ha and haloxyfop at 0.11 kg ai/ha controlled green foxtail and large crabgrass, but not barnyardgrass. Sulfometuron-treated big bluestem switchgrass plots had the best forage stand frequencies and yields and, at the rate used, sulfometuron satisfactorily controlled green foxtail but only marginally controlled barnyardgrass and large crabgrass.

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Accession: 001850905

Download citation: RISBibTeXText

DOI: 10.2307/4044725



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