Mannagrass control in grasses grown for seed. Barbara Hinds-Cook, Daniel Curtis, Carol

摘要

Mannagrass (Glyceris spp.) infests wet fields in the Willamette Valley of Oregon. The development of resistance to ethofumesate has left no effective mannagrass control in Italian ryegrass, seedling perennial ryegrass or tall fescue grown for seed. Ascreening study at Corvallis and two subsequent studies in production fields were conducted to identify possible control measures. Experimental design was a randomized complete block, with 8 by 70 ft plots with four replications (Corvallis), and 8 by 25ft plots with three replications (Tangent and Lebanon). The western mannagrass seed was obtained from a field in Lebanon.