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Effects of Drop Size, Spray Volume, and Dosage on Paraquat Toxicity

Published online by Cambridge University Press:  12 June 2017

K. S. McKinlay ,
R. Ashford  and
R. J. Ford
K. S. McKinlay
Affiliation:
Res. Sta., Res. Branch, Agriculture Canada, Univ. Campus, Saskatoon, Sask
R. Ashford
Affiliation:
Crop Sci. Dep., Univ. of Saskatchewan, Saskatoon, Sask
R. J. Ford
Affiliation:
Res. Sta., Res. Branch, Agriculture Canada, Univ. Campus, Saskatoon, Sask
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Abstract

The effects of drop-size, dosage, and spray volume on the toxicity of aqueous sprays of paraquat (1,1′-dimethyl-4,4′-bipyridinium ion) were measured using sunflower (Helianthus annuus L. ‘Peredovik’). Small drops (100 μ) were more phytotoxic than large ones (350 μ), and concentrated solutions (5.5 L/ha) were more phytotoxic than dilute solutions (2.2 L/ha) at the same dosage rate.

Type
Research Article
Information
Weed Science , Volume 22 , Issue 1 , January 1974 , pp. 31 - 34
Copyright
Copyright © 1974 by the Weed Science Society of America 

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References

Literature Cited

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