Efficacy of Seedling and Seedling root Dip in insecticides on the Control of the Brown Planthopper

P. R. M. RAO and P. S. PRAKASA RAOR

doi:https://doi.org/10.29321/MAJ.10.A02738

Madras Agricultural Journal

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Efficacy of Seedling and Seedling root Dip in insecticides on the Control of the Brown Planthopper

Author: P. R. M. RAO and P. S. PRAKASA RAOR,

p-ISSN: 0024-9602, e-ISSN:2582-5321, Vol: 69, Issue: jul-jul,

DOI:https://doi.org/10.29321/MAJ.10.A02738

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Abstract

Six different methods viz., 12, 6, 3, 1 hour and 1 minute seedling root dipping versus 1 minute whole plant dipping were evaluated in the bloessay studies against brown planthopper adults (BPH). Two commercial Insecticides 1. .. chierpyrifos and endrin at 0.05 and 0.10% a. l. were tested. One minute whole plant dipping in chlorpyrites 0.1%, e, i, was more persistent and remained toxic for about 16 to 20 days for the adults of BPH in the pot studies. The whole seedling dip in chlorpyrifos 0 10% z 1. concentration for one minute was the most effective treatment and was outstandingly superior to all other treatments.

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