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Bentazon Reduces Rust-Induced Disease in Yellow Nutsedge, Cyperus esculentus

Published online by Cambridge University Press:  12 June 2017

William L. Bruckart ,
Dennis R. Johnson  and
J. Ray Frank
William L. Bruckart
Affiliation:
Foreign Disease-Weed Sci. Res. Unit, Ft. Detrick, Bldg. 1301, Frederick, MD 21701
Dennis R. Johnson
Affiliation:
Foreign Disease-Weed Sci. Res. Unit, Ft. Detrick, Bldg. 1301, Frederick, MD 21701
J. Ray Frank
Affiliation:
Foreign Disease-Weed Sci. Res. Unit, Ft. Detrick, Bldg. 1301, Frederick, MD 21701
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Abstract

Puccinia canaliculata (Schw.) Lagerh. from Salisbury, MD, identified in greenhouse tests as specific to yellow nutsedge, was field evaluated for biological control of yellow nutsedge over a 2-yr period. Treatments included all combinations of P. canaliculata and 0.3 or 0.6 kg ai/ha benzaton. Disease development was reduced 50% by treatment with bentazon, compared with P. canaliculata alone. P. canaliculata reduced tuber recovery by 44%. Phytotoxicity was significantly higher from the rust treatments than controls. Treatment with P. canaliculata did not affect the number of shoots/m2.

Keywords

Bentazon, 3-(1-methylethyl)-(1H)-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxideyellow nutsedge, Cyperus esculentus L. # CYPESPuccinia canaliculatabiological weed controlintegrated pest managementintegrated weed management systemsCYPES
Type
Research
Information
Weed Technology , Volume 2 , Issue 3 , July 1988 , pp. 299 - 303
Copyright
Copyright © 1988 by the Weed Science Society of America 

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