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Crownvetch Establishment by Herbicides

Published online by Cambridge University Press:  12 June 2017

D. L. Linscott
Affiliation:
Res. Agron., Agr. Res. Serv., U.S. Dep. of Agr., Cornell Univ., Ithaca, NY 14850
R. D. Hagin
Affiliation:
Res. Agron., Agr. Res. Serv., U.S. Dep. of Agr., Cornell Univ., Ithaca, NY 14850

Abstract

Two methods of controlling weeds during the establishment of crownvetch (Coronilla varia L. ‘Chemung’) were studied. The first involved broadcast-incorporated spray treatments with either EPTC (S-ethyl dipropylthiocarbamate) or benefin (N-butyl-N-ethyl-α,α,α-trifluoro-2,6-dinitro-p-toluidine) before planting. At planting, simazine [2-chloro-4,6-bis(ethylamino)-s-triazine] or bromacil (5-bromo-3-sec-butyl-6-methyluracil) was applied in bands between seeded rows of crownvetch. Excellent weed control and good crownvetch establishment were obtained consistently, but in some years bromacil damaged seedling crownvetch excessively. In the second, weed control and subsequent crownvetch establishment were successful for 4 consecutive years after broadcastpreplanting treatments of EPTC or benefin, followed by a postemergence spraying with dinoseb (2-sec-butyl-4,6-dinitrophenol).

Type
Research Article
Copyright
Copyright © 1974 by the Weed Science Society of America 

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References

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