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Additives to Dalapon Sprays

Published online by Cambridge University Press:  12 June 2017

L. S. Jordan ,
B. E. Day  and
R. T. Hendrixson
L. S. Jordan
Affiliation:
University of California Citrus Research Center and Agricultural Experiment Station, Riverside, California
B. E. Day
Affiliation:
University of California Citrus Research Center and Agricultural Experiment Station, Riverside, California
R. T. Hendrixson
Affiliation:
University of California Citrus Research Center and Agricultural Experiment Station, Riverside, California
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Abstract

The addition of a combination of methyl cellulose, sodium acetate and an alkyl aryl sodium sulfonate (sodium petroleum sulfonate) to spray solutions increased the toxicity of 2,2-dichloropropionic acid (dalapon) to oats and Cynodon dactylon L. The most effective combination tested on oats in the laboratory was 2.25% methyl cellulose, 1.75% sodium acetate, and 0.8% of an alkyl aryl sodium sulfonate. Lower concentrations of the three materials, combinations of any two of these additives, or any one added alone were less effective. Under field conditions, the response of Cynodon dactylon L. to dalapon was more rapid, control was more uniform and regrowth slower when dalapon sprays contained the three additives. Methyl cellulose increased and maintained the spray load on the grass foliage. Alkyl aryl sodium sulfonate probably increased penetration of dalapon. Sodium acetate increased the toxicity of the spray.

Type
Research Article
Information
Weeds , Volume 11 , Issue 3 , July 1963 , pp. 198 - 201
Copyright
Copyright © 1963 Weed Science Society of America 

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References

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