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Paraquat-Surfactant Combinations for Control of Downy Brome

Published online by Cambridge University Press:  12 June 2017

Raymond A. Evans  and
Richard E. Eckert Jr.
Raymond A. Evans
Affiliation:
Crops Research Division, Agricultural Research Service, U. S. Department of Agriculture, University of Nevada, Reno, Nevada
Richard E. Eckert Jr.
Affiliation:
Crops Research Division, Agricultural Research Service, U. S. Department of Agriculture, University of Nevada, Reno, Nevada
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Abstract

Downy brome (Bromus tectorum L.) control by 1,1′-dimethyl-4,4′-bipyridinium salt (paraquat) was increased from 12% without surfactant to 73 to 94% with 17 of 22 surfactants. Paraquat toxicity was greatest at 0.06 and 0.12% surfactant concentrations and decreased at higher concentrations. The less effective surfactants were less water-soluble and more lipophilic than related, more effective ones.

Type
Research Article
Information
Weeds , Volume 13 , Issue 2 , April 1965 , pp. 150 - 151
Copyright
Copyright © 1965 Weed Science Society of America 

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References

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