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Drift Comparisons of Low-Expansion Foams and Conventional Sprays

Published online by Cambridge University Press:  12 June 2017

L. F. Bouse  and
R. E. Leerskov
L. F. Bouse
Affiliation:
U. S. Dep. Agr., Agr. Res. Serv., Texas A&M Univ., College Station, TX 77843
R. E. Leerskov
Affiliation:
Soil and Crop Sci. Dep., Texas A&M Univ., College Station, TX 77843
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Abstract

Experiments were conducted to compare the drift of low-expansion foam and conventional sprays in a low-speed horizontal wind tunnel under controlled environmental conditions. Dimensions of the tunnel were 1.30 m high, 0.61 m wide, and 7.32 m long. Wind speed was maintained at 1.52 m/sec. Drift was compared for spray solutions, with and without foam adjuvants, using several different types and sizes of air-inducting nozzles and three sizes of conventional fan nozzles. Large drops produced by the air-inducting nozzles, with and without foam adjuvant, resulted in significantly less drift beyond 1.83 and 6.10 m than sprays from the conventional fan nozzles. The addition of foam adjuvant to the spray solution resulted in increased drift beyond 1.83 m for sprays from the air-induction nozzles in several comparisons but did not result in a significant increase in the drift beyond 6.10 m.

Type
Research Article
Information
Weed Science , Volume 21 , Issue 5 , September 1973 , pp. 405 - 409
Copyright
Copyright © 1973 Weed Science Society of America 

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References

Literature Cited

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