Efficacy of Insecticides Against Sorghum Spotted Stem Borer Chilo partellus (Swinhoe)

Authors

  • N. Kamakshi Regional Agricultural Research Station, Nandyal, 518502, Andhra Pradesh
  • A. S. R. Sarma Regional Agricultural Research Station, Nandyal, 518502, Andhra Pradesh
  • C. V. Chandra Mohan Reddy Regional Agricultural Research Station, Nandyal, 518502, Andhra Pradesh

DOI:

https://doi.org/10.55446/IJE.2021.52

Keywords:

Chilo partellus, chlorantraniliprole, sorghum, tunnel damage, deadhearts, exit holes, carbofuran 3G, spinosad, leaf injury scale

Abstract

Efficacy of insecticides against spotted stem borer Chilo partellus (swinhoe) in sorghum was studied at the institutional farm, Regional Agricultural Research Station, Nandyal, Andhra Pradesh during rabi 2016-17 and 2017-18. Deadhearts were observed to be less with spinosad (4.0%) followed by carbofuran 3G (4.10%), chlorantraniliprole 18.5SC (4.95) and chlorantraniliprole 0.4G (4.86) applied at 25 days after sowing. The least infestation at 40 days after sowing was observed with chlorantraniliprole 18.5SC (6.2%), spinosad 45SC (7.0%), chlorantraniliprole 0.4G (7.3%) and carbofuran 3G @ 10 kg/ ha (8.0%). Lesser number of larvae in the stem tunnel were observed with chlorantraniliprole 18.5SC/0.4G, spinosad, carbofuran 3G, phorate 10G and flubendiamide. The incremental benefit cost ratio was maximum with carbofuran 3G (5.2:1), followed by chlorantraniliprole 0.4G (4.8:1) and chlorantraniliprole 18.5SC (4.2:1).

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Published

2021-10-27

How to Cite

Kamakshi, N., Sarma, A. S. R. ., & Reddy, C. V. C. M. . (2021). Efficacy of Insecticides Against Sorghum Spotted Stem Borer <i>Chilo partellus</i> (Swinhoe). Indian Journal of Entomology, 84(3), 647–650. https://doi.org/10.55446/IJE.2021.52

Issue

Section

Research Communications

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