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Enhancing Herbicide Selectivity with Water-Repellent Adjuvants

Published online by Cambridge University Press:  20 January 2017

Eric A. Nelson  and
Donald Penner
Eric A. Nelson
Affiliation:
Department of Crop and Soil Sciences, Michigan State University, East Lansing, MI 48824
Donald Penner*
Affiliation:
Department of Crop and Soil Sciences, Michigan State University, East Lansing, MI 48824
*
Corresponding author's E-mail: [email protected]
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Abstract

The objectives of this research were to determine if adjuvants with water-repellent properties could reduce herbicide retention on foliage, and thereby absorption, of the spray solution and to determine if herbicide activity was maintained with a reduction in herbicide retention. Water-repellent adjuvants, DC 2-1322, DC 1-6184, and DC 772, were evaluated with three herbicides, isoxaflutole, pendimethalin, and flumioxazin, and on three crop species, cabbage, tomato, and wheat. The water repellents DC 2-1322 and DC 772 were ineffective with these herbicides and these crop species. DC 1-6184 effectively reduced spray retention for all three herbicides evaluated, regardless of formulation, on all three species. The efficacy of DC 1-6184 was more evident if the spray application was restricted to the plant foliage. The water-repellent DC 1-6184 has potential to decrease injury while maintaining weed control with certain herbicides.

Keywords

Flumioxazinisoxaflutolependimethalincabbage, Brassica oleracea L. ‘Megaton F1’tomato, Lycopersicon esculentum Mill., ‘Sunny hybrid’wheat, Triticum aestivum L. ‘Harus’RetentionsurfactantCS, capsule suspensionDAT, days after treatmentEC, emulsifiable concentrateSC, soluble concentrateWDG, water-dispersible granule
Type
Research Article
Information
Weed Technology , Volume 20 , Issue 3 , September 2006 , pp. 677 - 681
Copyright
Copyright © Weed Science Society of America 

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References

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