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Effects of Two Environmental Factors on Removal of 2,4-DB from Forage

Published online by Cambridge University Press:  12 June 2017

D. L. Linscott  and
R. D. Hagin
D. L. Linscott
Affiliation:
Crops Research Division, Agricultural Research Service, U. S. Department of Agriculture at the Department of Agronomy, Cornell University, Ithaca, New York
R. D. Hagin
Affiliation:
Crops Research Division, Agricultural Research Service, U. S. Department of Agriculture at the Department of Agronomy, Cornell University, Ithaca, New York
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Abstract

Simulated rainfall at 0.1, 0.5, and 2.0 in applied to six crops in the field previously treated with 1.5 lb/A of the dimethylamine salt of 4-(2,4-dichlorophenoxy)butyric acid (2,4-DB) resulted in an average herbicidal loss from the forage of 21, 60, and 93%, respectively. One inch of rain removed an average of 80% of 2,4-DB applied at 0.5, 1.5, and 2.0 lb/A to birdsfoot trefoil (Lotus corniculatus L.). Loss of the herbicide was attributed to the dissolving of herbicide in water and subsequent runoff from leaf surfaces, and an acceleration of herbicidal decomposition in the plant. Light interception decreased the rate of 2,4-DB breakdown in alfalfa (Medicago sativa L.) but was not considered to be of practical importance.

Type
Research Article
Information
Weed Science , Volume 16 , Issue 2 , April 1968 , pp. 114 - 116
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

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