University of California

Volatility of herbicides under field conditions


B. E. Day
E. Johnson
J. L. Dewlen

Authors Affiliations

B. E. Day was Associate Plant Physiologist, University of California Citrus Experiment Station, Riverside; E. Johnson was Field Supervisor, Agricultural Pest Control, California Department Agriculture, Los Angeles; J. L. Dewlen was Deputy Agricultural Commissioner, Riverside County.

Publication Information

Hilgardia 28(11):255-267. DOI:10.3733/hilg.v28n11p255. February 1959.

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Herbicidal formulations of 2,4-D, 2,4,5-TP, and amino triazole were tested for volatility under high summer temperature conditions in the Coachella Valley, California. The herbicides were applied to plots in cotton fields and the degree and extent of injury to surrounding cotton plants served as a measure of the volatility of the herbicides. Formulations of 2,4-D were found to be increasingly volatile in the order amine salts, acid, and low-volatile esters. It was determined that vaporization of the herbicides occurred predominantly during the daytime. A low volatile formulation of 2,4,5-TP appeared to be as volatile as similar formulations of 2,4-D but produced only minor injury symptoms on cotton. Amino triazole appeared to be entirely free of volatility hazard.

Literature Cited

Allen W. W. Progress report on volatility of some esters of 2,4-D 1950. pp.7-12. Proc. Third Ann. Southern Weed Conf.

Baskin A. David, Walker E. A. A biological method for the determination of extent of volatility of esters of 2,4-D and/or 2,4,5-T 1953. pp.47-50. Proc. Ann. Northeastern Weed Control Conf.

Hitchcock A. E., Zimmerman P. W., Kirkpatrick Henry Jr. A simple, rapid biological method for determining the relative volatility of esters of 2,4-D and 2,4,5-T. Boyce Thompson Inst. Contrib. 1953. 17:243-63.

King Lawrence J., Kramer John A. Jr. Studies on the herbicidal properties and volatility of some polyethelene and polypropylene glycol esters of 2,4-D and 2,4,5-T. Boyce Thompson Inst. Contrib. 1951. 16:267-78.

Marth Paul C., Mitchell John W. Comparative volatility of various forms of 2,4-D. Bot. Gaz. 1949. 110:632-36. DOI: 10.1086/335565 [CrossRef]

Mullison Wendell R., Hummer Richard W. Some effects of the vapor of 2,4-dichlorophenoxyacetic acid derivatives on various field crop and vegetable seeds. Bot. Gaz. 1949. 111:77-85. DOI: 10.1086/335575 [CrossRef]

Tafuro A. J., Van Geluwe J. D., Curtis L. E. Drift and volatility comparison of an amine salt and ester form of 2,4-D under field conditions 1950. pp.31-35. Northeastern States Weed Control Conf. Proc.

Zimmerman P. W., Hitchcock A. E. Experiments with vapors and solutions of growth substances. Boyce Thompson Inst. Contrib. 1939. 10:481-508.

Zimmerman P. W., Hitchcock A. E., Kirkpatrick Henry Jr. Methods for determining relative volatility of esters of 2,4-D and other growth regulants based on response of tomato plants. Weeds. 1953. 2:254-61. DOI: 10.2307/4040102 [CrossRef]

Zimmerman P. W., Hitchcock A. E., Wilcoxon Frank. Responses of plants to growth substances applied as solutions and vapors. Boyce Thompson Inst. Contrib. 1939. 10:363-80.

Day B, Johnson E, Dewlen J. 1959. Volatility of herbicides under field conditions. Hilgardia 28(11):255-267. DOI:10.3733/hilg.v28n11p255
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