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Control of Annual Bluegrass (Poa annua) in Perennial Ryegrass (Lolium perenne) Seed Fields

Published online by Cambridge University Press:  12 June 2017

W. O. Lee
W. O. Lee*
Affiliation:
Sci. Ed. Admin., U.S. Dep. Agric., Crop Sci. Dep., Oregon State Univ., Corvallis, OR 97331
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Abstract

Ethofumesate [(±)-2-ethoxy-2,3-dihydro-3,3-dimethyl-5-benzofuranyl methanesulfonate] applied postemergence in November at rates from 1.4 to 4.5 kg/ha eliminated all annual bluegrass (Poa annua L.) that had survived application of diuron [3-(3,4-dichlorophenyl)-1,1-dimethylurea] in fall carbon-planted perennial ryegrass (Lolium perenne L.) seed fields. Ethofumesate also eliminated all annual bluegrass in established perennial ryegrass seed fields when applied in late October at rates from 1.1 to 3.4 kg/ha or when applied as sequential treatments with atrazine [2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine] at 1.4 kg/ha or with simazine [2-chloro-4,6-bis(ethylamino)-s-triazine] at 2.2 kg/ha. In most experiments, perennial ryegrass seed yields were not adversely affected by applications of ethofumesate alone or by sequential treatments with diuron, atrazine, or simazine.

Keywords

Carbon-plantingvolunteer-ryegrass controlethofumesateseed quality
Type
Research Article
Information
Weed Science , Volume 29 , Issue 4 , July 1981 , pp. 444 - 447
Copyright
Copyright © 1981 by the Weed Science Society of America 

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References

Literature Cited

1. Bingham, S. W., Schmidt, R. E., and Curry, C. K. 1969. Annual bluegrass control in overseeded putting green turf. Agron. J. 61: 908–911.CrossRefGoogle Scholar
2. Dickens, R. 1979. Control of annual bluegrass (Poa annua) in overseeded bermudagrass (Cynodon spp.) golf greens. Weed Sci. 27:642–644.CrossRefGoogle Scholar
3. Ekins, W. L. 1976. Results from experimental program in sugar beets and grass seed crops with NC-8438. Proc. West. Soc. Weed Sci. 29:190–191.Google Scholar
4. Johnson, B. J. 1977. Effect of herbicide treatments on overseeded putting green turf. Weed Sci. 25:343–347.CrossRefGoogle Scholar
5. Lee, W. O. 1973. Clean grass seed crops established with activated carbon bands and herbicides. Weed Sci. 21:537–541.Google Scholar
6. Lee, W. O. 1977. Winter annual grass weed control in Italian ryegrass with ethofumesate. Weed Sci. 25:252–255.Google Scholar
7. Lee, W. O. 1980. Control of volunteer wheat (Triticum aestivum) in fall-planted perennial ryegrass (Lolium perenne) with ethofumesate. Weed Sci. 28:292–294.CrossRefGoogle Scholar
8. Lee, W. O. and Hepworth, H. M. 1976. Oregon weed control recommendations for grass and legume seed crops. Extension Circ. 902, Oregon State Univ. Ext. Serv. 8 pp.Google Scholar
9. Watschke, T. L., Long, F. W., and Duich, J. M. 1979. Control of Poa annua by suppression of seedheads with growth regulators. Weed Sci. 27:224–231.CrossRefGoogle Scholar