Indian Journal of Crop Science

  • Year: 2007
  • Volume: 2
  • Issue: 1

Bioefficacy of new seed treatment chemicals against shoot fly and shoot bug on rabi sorghum in north Karnataka

  • Author:
  • L. Vijay Kumar1, A. Prabhuraj2
  • Total Page Count: 3
  • DOI:
  • Page Number: 99 to 101

1Department of Agricultural Entomology, University of Agricultural Sciences, GKVK, Bangalore-560 065.

2Department of Agricultural Entomology, College of Agriculture, Raichur-584 101, Karnataka, India.

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Abstract

Investigation was carried out to assess the blo-efflcacy of new seed treatment chemicals on shoot fly and shoot bug in two crop seasons during rabi 2003–04 and 2004–05. The result showed that seed treatment with thiamethoxam 70 WS @ 2 g/kg recorded lower infestation of dead heart (7.94%), shoot bug population (5.83/5 plant), higher grain (31.93 g/ha) and fodder yield (56.92 g/ha). Imidacloprid 70 WS @ 5 g/kg, Endosulfan 35 EC seed soaking (8 hrs) @ 2ml/lt/kg and carbosulfan 25 DS @ 40 g/kg were the next best treatments and were on par with each other. Whereas, phorate 10 G soli application @ 20 kg/ha as the least effective treatment and was superior to untreated control.

Keywords

Seed treatment chemicals, Atherigona soceata, Peregrinus maidis, rabi sorghum