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Droplet and Vapor Drift from Butyl Ester and Dimethylamine Salt of 2,4-D

Published online by Cambridge University Press:  12 June 2017

R. Grover ,
J. Maybank  and
K. Yoshida
R. Grover
Affiliation:
Res. Sta., Canada Dep. Agr., Regina, Saskatchewan
J. Maybank
Affiliation:
Saskatchewan Research Council, Saskatoon, Saskatchewan
K. Yoshida
Affiliation:
Saskatchewan Research Council, Saskatoon, Saskatchewan
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Abstract

The relative drift of droplet and vapor of butyl ester and dimethylamine formulations of (2,4-dichlorophenoxy)acetic acid (2,4-D) was determined under conventional crop spraying procedures in the field. Labelled herbicides were mixed with spray solution or emulsion, and the ground deposit and the air-borne droplet and vapor clouds drifting from the target area were collected. The mass of the dimethylamine formulation drifting as droplets was 3 to 4% of the material sprayed. No significant amounts of this material were collected as vapor or particulate drift. For the butyl ester, in addition to the droplet drift, 25 to 30% of the material was collected as vapor drift in the half hour after spraying. Thus the drift potential from the butyl ester was about 8 to 10 times greater than that from the dimethylamine formulation under the conditions of these tests.

Type
Research Article
Information
Weed Science , Volume 20 , Issue 4 , July 1972 , pp. 320 - 324
Copyright
Copyright © Weed Science Society of America 

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References

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