MANAGEMENT OF RICE GALL MIDGE Orseolia oryzae (WOOD-MASON) WITH REFERENCE TO TIME OF PLANTING AND VARIETAL RESISTANCE

S. UTHAMASAMY and P. KARUPPUCHAMY

doi:https://doi.org/10.29321/MAJ.10.A02243

Madras Agricultural Journal

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MANAGEMENT OF RICE GALL MIDGE Orseolia oryzae (WOOD-MASON) WITH REFERENCE TO TIME OF PLANTING AND VARIETAL RESISTANCE

Author: S. UTHAMASAMY and P. KARUPPUCHAMY,

p-ISSN: 0024-9602, e-ISSN:2582-5321, Vol: 73, Issue: mar-mar,

DOI:https://doi.org/10.29321/MAJ.10.A02243

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Abstract

The incidence of rice gall midge was maximum when CO 40 was planted on 1st September during samba season and when IR 20 was planted on 16th September during thaladi season. The incidence was less when the plantings were made during August or October. Of the 41 varieties tested. IET 3231 was free from gallmidge Infestation while CR 1009. IR 20, Jaya, CO 25, CO 40 and Pankaj recorded 5.91. 9.13, 9.80, 13.22. 14.83 and 34.59% respectively.

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