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Effects of Surfactant Concentration on Johnsongrass Control with Dalapon

Published online by Cambridge University Press:  12 June 2017

C. G. McWhorter
C. G. McWhorter*
Affiliation:
Crops Research Division, Agricultural Research Service, U. S. Department of Agriculture, and the Delta Branch, Mississippi Agricultural Experiment Station, Stoneville, Mississippi
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Abstract

Addition of surfactant (a polyoxyethylene thioether) to solutions of sodium 2,2-dichloropropionate (dalapon) increased the activity of both technical and formulated grades of dalapon on Johnsongrass (Sorghum halepense (L.) Pers.). The increase in activity was influenced by the rate and formulation of herbicide and in some instances by the volume of water in which treatments were applied. Varying the volume of diluent affected control with technical dalapon to a greater extent than that with formulated dalapon probably because of differences in surfactant concentrations. Plants arising from short rhizomes were more readily controlled by dalapon than those from longer rhizomes.

Type
Research Article
Information
Weeds , Volume 11 , Issue 2 , April 1963 , pp. 83 - 86
Copyright
Copyright © 1963 Weed Science Society of America 

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References

Literature Cited

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