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Root and Foliar Absorption of Atrazine Applied Postemergence to Broadleaf Weeds

Published online by Cambridge University Press:  12 June 2017

Lafayette Thompson Jr.  and
F. W. Slife
Lafayette Thompson Jr.
Affiliation:
Department of Agronomy, University of Illinois, Urbana, Illinois
F. W. Slife
Affiliation:
Department of Agronomy, University of Illinois, Urbana, Illinois
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Abstract

Results from both growth chamber and field experiments indicate that root absorption of 2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine (atrazine) applied postemergence to small broadleaf weeds is not a requisite for their control. Though broadleaf weeds absorb toxic quantities of atrazine from wet soil, they can be killed by foliar absorption alone because all of their meristems are exposed to a foliar spray. They are particularly sensitive when foliar penetration is enhanced by high relative humidity and wet foliage.

Type
Research Article
Information
Weed Science , Volume 18 , Issue 3 , May 1970 , pp. 349 - 351
Copyright
Copyright © 1970 Weed Science Society of America 

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References

Literature Cited

1. Dexter, A. G., Burnside, O. C., and Lavy, T. L. 1966. Factors influencing the phytotoxicity of foliar applications of atrazine. Weeds 14:222–228.CrossRefGoogle Scholar
2. Thompson, L. Jr. and Slife, F. W. 1969. Foliar and root absorption of atrazine applied postemergence to giant foxtail. Weed Sci. 17:251–256.CrossRefGoogle Scholar
3. Wax, L. M. and Behrens, R. 1965. Absorption and translocation of atrazine in quackgrass. Weeds 13:107–109.CrossRefGoogle Scholar