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Effects of Simulated Rainfall on Bentazon Activity

Published online by Cambridge University Press:  12 June 2017

David L. Doran  and
Robert N. Andersen
David L. Doran
Affiliation:
Dep. of Agron. and Plant Genetics, Univ. of Minnesota P.O. Box 4913 Hawthorn Road, Kansas City, MO 65120
Robert N. Andersen
Affiliation:
Agr. Res. Serv., U.S. Dep. of Agr.; Dep. of Agron. and Plant Genetics, Univ. of Minnesota, St. Paul, MN 55101
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Abstract

Simulated rainfall less than 8 hr after postemergence application of bentazon (3-isopropyl-1H-2,1,3-benzothiadiazin-(4)3H-one 2, 2-dioxide) reduced its activity on velvetleaf (Abutilon theophrasti Medic.) and common cocklebur (Xanthium pensylvanicum Wallr.) in greenhouse studies. In field studies, simulated rainfall less than 24 hr after application reduced bentazon's activity on velvetleaf. on common cocklebur, bentazon's activity was reduced even if simulated rainfall was delayed for more than 24 hr after application. In greenhouse studies, spray adjuvants (vegetable or petroleum oil) were helpful in overcoming the detrimental effects of simulated rainfall. Greenhouse and field studies indicated that soybeans [Glycine max (L.) Merr.] could tolerate bentazon-oil adjuvant combinations.

Type
Research Article
Information
Weed Science , Volume 23 , Issue 2 , March 1975 , pp. 105 - 109
Copyright
Copyright © 1975 by the Weed Science Society of America 

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References

Literature Cited

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