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Combination Effects of Low Rates of Fluridone and Bentazon

Published online by Cambridge University Press:  12 June 2017

J. P. Sterrett
J. P. Sterrett*
Affiliation:
Weed Sci. Res., Agric. Res. Serv., U.S. Dep. Agric., Bldg. 1301, Ft. Detrick, Frederick, MD 21701
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Abstract

The response of yellow nutsedge (Cyperus esculentus L. #3 CYPES) and Canada thistle [Cirsium arvense (L.) Scop. # CIRAR] to combinations of low rates of fluridone {1-methyl-3-phenyl-5-[3-(trifluoromethyl)phenyl]-4(1H)-pyridinone} and bentazon [3-(1-methylethyl)-(1H)-2,l,3-benzothiadiazin-4(3H)-one 2,2-dioxide] was determined in a controlled environment chamber and on Canada thistle in the field. In the growth chamber, injury to yellow nutsedge was increased with 24 g ai/ha fluridone combined with 323 g ai/ha bentazon. Either 2.7 or 5.4 g/ha fluridone combined with 27 g/ha bentazon caused uniform injury to Canada thistle. In the field, the combinations of 5.6 g/ha fluridone with either 28 or 2800 g/ha bentazon was phytotoxic to Canada thistle.

Keywords

Cyperus esculentusCirsium arvenseCYPESCIRAR
Type
Research
Information
Weed Technology , Volume 1 , Issue 2 , April 1987 , pp. 168 - 170
Copyright
Copyright © 1987 by the Weed Science Society of America 

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References

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