Effect of Different Levels of Nitrogen and Granular Insecticides in the Control of the Rice Leaf Roller, Cnaphalocrocis medinalis (Guenee)

N. CHANDRAMOHAN and S. JAYARAJ

doi:https://doi.org/10.29321/MAJ.10.A03230

Madras Agricultural Journal

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Effect of Different Levels of Nitrogen and Granular Insecticides in the Control of the Rice Leaf Roller, Cnaphalocrocis medinalis (Guenee)

Author: N. CHANDRAMOHAN and S. JAYARAJ,

p-ISSN: 0024-9602, e-ISSN:2582-5321, Vol: 64, Issue: aug-aug,

DOI:https://doi.org/10.29321/MAJ.10.A03230

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Abstract

The rice leaf roller damage was found to increase with increasing levels of nitrogen. Among the two granular insecticides tested viz. carbofuran 3 G and phorate 10 G for its control, carbofuran controlled the pest effectively. Increase in the levels of nitrogen necessitated corresponding increase in the dose of carbofuran. Different concentrations of phorate had no influence in controlling the post.

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