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Preemergence Activity of Dinitroaniline Herbicides Used for Weed Control in Cool-Season Turfgrasses
Prasanta C. Bhowmik and S. Wayne Bingham
Vol. 4, No. 2 (Apr. - Jun., 1990), pp. 387-393
Stable URL: http://www.jstor.org/stable/3987094
Page Count: 7
You can always find the topics here!Topics: Herbicides, Weed control, Turf grasses, Soil water, Root growth, Thatch, Rhizomes, Sandy loam soils, Silty soils, Rooting
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Dinitroaniline herbicides are major herbicides used to control annual grass weeds in cool-season turfgrasses. At least three herbicides, benefin, pendimethalin, and trifluralin are labeled preemergence to control weeds in established turfgrass. Prodiamine could be a competitive product. Benefin at 2.2 to 3.4 kg ai/ha, pendimethalin at 1.7 to 3.4 kg ai/ha, prodiamine at 0.6 to 1.7 kg ai/ha, and benefin plus trifluralin at 1.1 plus 0.6 to 2.3 plus 1.1 kg ai/ha effectively control many annual grass weeds, including large and smooth crabgrass, yellow and green foxtail, barnyardgrass, goosegrass, fall panicum, and annual bluegrass. Most dinitroaniline herbicides provide residual preemergence weed control for the entire growing season. In general, Kentucky bluegrass, perennial ryegrass, tall fescue, red fescue, and other cool-season turfgrasses tolerate most of these herbicides, although higher-than-normal rates of any dinitroaniline herbicide could restrict root growth and cause stand thinning in turfgrass species.
Weed Technology © 1990 Weed Science Society of America