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Quackgrass (Agropyron repens) Control in Birdsfood Trefoil (Lotus corniculatus) Seed Production

Published online by Cambridge University Press:  12 June 2017

Dean L. Linscott  and
Richard Vaughan
Dean L. Linscott
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Cornell Univ., Ithaca, NY 14853
Richard Vaughan
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Cornell Univ., Ithaca, NY 14853
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Abstract

Between 1982 and 1986, spring treatments of haloxyfop, fluazifop, and sethoxydim all applied at 400 g ai/ha alone and combined with dalapon at 3400 g ai/ha were evaluated for quackgrass control and subsequent effect on established birdsfoot trefoil seed production. Haloxyfop alone and combined with dalapon were superior to fluazifop or sethoxydim alone or mixed with dalapon for controlling quackgrass and other grass weeds. Birdsfoot trefoil seed yield averages over 3 yr were 310, 160, 150, and 180 kg/ha after treatment with haloxyfop, fluazifop, sethoxydim, and dalapon, respectively, compared to a control yield of 80 kg/ha. Yields were lower, 220 kg/ha, with combinations involving haloxyfop plus dalapon compared to haloxyfop alone.

Keywords

Dalapon, 2,2-dichloropropanoic acidfluazifop, (±)-2-[4-[[5-(trifluoromethyl)-2-pyridinyl]oxy] phenoxy] propanoic acidhaloxyfop, 2-[4-[[3-chloro-5-(trifluoromethyl)-2-pyridinyl] oxy] phenoxy] propanoic acidsethoxydim, 2-[1-(ethoxyimino)butyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-onebirdsfoot trefoil, Lotus corniculatus L. ‘Viking’ #3 LOTCOquackgrass, Agropyron repens (L.)Beauv # AGRREDalaponfluazifophaloxyfopsethoxydimAGRREPHLPRTRFPR
Type
Research
Information
Weed Technology , Volume 3 , Issue 1 , March 1989 , pp. 102 - 104
Copyright
Copyright © 1989 by the Weed Science Society of America 

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References

Literature Cited

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