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Penetration, Translocation, and Toxicity of Glyphosate in Bermudagrass (Cynodon dactylon)

Published online by Cambridge University Press:  12 June 2017

C.H. Fernandez  and
D.E. Bayer
C.H. Fernandez
Affiliation:
Dep. Bot., Univ. of California, Davis, CA 95616
D.E. Bayer
Affiliation:
Dep. Bot., Univ. of California, Davis, CA 95616
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Abstract

A 3.6 g/L solution of glyphosate [N-(phosphonomethyl)glycine] applied to selected parts of bermudagrass [Cynodon dactylon (L.) Pers.] shoots did not kill the entire plant. However, phototoxicity increased as more parts of the plant were treated. No differences were observed when solutions of 3.6 and 5.4 g/L glyphosate were applied at 94 and 373 L/ha. However, greater herbicide efficacy was obtained when 1.8 g/L solution was applied at the higher volume. Translocation of this herbicide appeared to follow the typical source-sink relationship. A 7.2 g/L solution of glyphosate applied at 373 L/ha was necessary to kill the plant.

Type
Research Article
Information
Weed Science , Volume 25 , Issue 5 , September 1977 , pp. 396 - 400
Copyright
Copyright © 1977 by the Weed Science Society of America 

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