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Interaction of Propanil and Selected Insecticides on Rice (Oryza sativa)

Published online by Cambridge University Press:  12 June 2017

Khosro Khodayari ,
Roy J. Smith Jr.  and
N. Philip Tugwell
Khosro Khodayari
Affiliation:
Univ. Arkansas, Rice Res. and Ext. Center
Roy J. Smith Jr.
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric, Stuttgart, AR 72160
N. Philip Tugwell
Affiliation:
Univ. Arkansas, Rice Res. and Ext. Center
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Abstract

Field experiments determined the potential interaction of insecticides and propanil [N-(3,4-dichlorophenyl) propanamide] in drill-seeded rice (Oryza sativa L. ‘Bond’). The carbamate insecticides carbaryl (1-naphthylmethylcarbamate) and methomyl {S-methyl N-[(methylcarbamoyl) oxy] thioacetimidate} interacted more severely with propanil than the organophosphate methyl parathion [O,O-dimethyl O-(p-nitrophenyl) phosphorothioate] in emulsifiable or encapsulated formulations. Carbaryl and methomyl injured rice vegetatively when applied from 7 days before to 4 days after propanil. Carbaryl was the only insecticide that interacted with propanil to reduce rice grain yield. Insecticides interacted adversely with propanil on rice grain yield when they were applied 2 days before propanil treatment. Insecticide interactions with propanil from most to least phytotoxic to rice plants for all times of application were: carbaryl > methomyl > emulsifiable methyl parathion > encapsulated methyl parathion.

Keywords

Carbarylmethomylmethyl parathion
Type
Special Topics
Information
Weed Science , Volume 34 , Issue 5 , September 1986 , pp. 800 - 803
Copyright
Copyright © 1986 by the Weed Science Society of America 

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References

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