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Interaction of EPTC and DNBP on Seedlings of Alfalfa and Birdsfoot Trefoil

Published online by Cambridge University Press:  12 June 2017

D. L. Linscott  and
R. D. Hagin
D. L. Linscott
Affiliation:
Agricultural Research Service, U.S. Department of Agriculture at the Department of Agronomy, Cornell University, Ithaca, New York
R. D. Hagin
Affiliation:
Agricultural Research Service, U.S. Department of Agriculture at the Department of Agronomy, Cornell University, Ithaca, New York
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Abstract

In 1965 and 1966, alfalfa (Medicago sativa L., var. Cayuga) and birdsfoot trefoil (Lotus corniculatus L., var. Viking) were seeded in soil treated just before planting with ethyl N,N-dipropylthiocarbamate (EPTC). To determine herbicidal interaction on a field scale, 4,6-dinitro-o-Sec-butylphenol (DNBP) was applied as a postemergence treatment. No significant interaction of EPTC and DNBP was evident on legume or weedy grass stands on yield. Interaction of EPTC and DNBP on control of annual broadleaf weeds was noted 1 year but not the second. DNBP but not EPTC significantly reduced birdsfoot trefoil stands during both years and reduced alfalfa stands 1 year but not the other. EPTC controlled annual and perennial weed grasses and DNBP controlled annual broadleaf weeds successfully. The incorporation of EPTC in soil before planting alfalfa and birdsfoot trefoil followed by a postemergence DNBP treatment was considered to be a practical weed control method.

Type
Research Article
Information
Weed Science , Volume 16 , Issue 2 , April 1968 , pp. 182 - 184
Copyright
Copyright © Weed Science Society of America 

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References

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