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Control of Nutsedge with Organic Arsenical Herbicides

Published online by Cambridge University Press:  12 June 2017

P. E. Keeley  and
R. J. Thullen
P. E. Keeley
Affiliation:
Plant Sci. Res. Div, Agr. Res. Ser., U. S. Dep. Agr., Shafter, California 93263
R. J. Thullen
Affiliation:
Plant Sci. Res. Div, Agr. Res. Ser., U. S. Dep. Agr., Shafter, California 93263
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Abstract

Nonradioactive and 14C-labeled arsenical herbicides were applied to foliage of purple nutsedge (Cyperus rotundus L.) and yellow nutsedge (Cyperus esculentus L.) grown under greenhouse and growth chamber conditions. Disodium methanearsonate (DSMA) controlled purple nutsedge better at 20 and 29 C than at 13 C. Monosodium methanearsonate (MSMA) was as effective in controlling this weed at 13 C as at 20 and 29 C. DSMA and MSMA provided 80% or greater control of yellow nutsedge grown at the three temperatures. When plants were treated with 14C-DSMA and 14C-MSMA, greater radioactivity was detected in yellow nutsedge than in purple nutsedge. The apparent differential herbicide penetration of purple and yellow nutsedge leaves is believed to have contributed substantially to the control of nutsedge observed in this study.

Type
Research Article
Information
Weed Science , Volume 19 , Issue 5 , September 1971 , pp. 601 - 606
Copyright
Copyright © Weed Science Society of America 

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References

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