Indian Journal of Entomology
Open Access
SCOPUSWeb of Science
  • Year: 2025
  • Volume: 87
  • Issue: 2

Estimation of Yield Losses Due to Major Insect Pests of Groundnut

  • Author:
  • N Priyanka1,*, O Shaila2, M Anuradha3, V Divya Rani4, M Rajashekhar5
  • Total Page Count: 4
  • Published Online: Sep 25, 2025
  • Page Number: 406 to 409

1Department of Entomology, PJTSAU, Rajendranagar, Hyderabad500030, Telangana, India

2Department of EntomologyKrishi Vignanya Kendram, Palem, Nagarkurnool509203, Telangana, India

3Department of Entomology, VPM, Rajendranagar, Hyderabad500030, Telangana, India

4Department of Pathology, Regional Agricultural Research Station, Palem, Nagarkurnool509203, Telangana, India

5IBT, Rajendranagar, Hyderabad500030, Telangana, India

*Email: priyankaneeli89@gmail.com (corresponding author)

Online Published on 25 September, 2025.

Abstract

A field experiment was carried to estimate the yield losses due to the groundnut leaf miner Aproaerema modicella (Deventer), tobacco caterpillar Spodoptera litura (F), leafhoppers Empoasca kerri (Pruthi) and thrips Scirtothrips dorsalis (Hood). The results showed the insect pests caused a significant reduction in plant height and other yield attributing characters. They caused a mean reduction of plant height (22%), primary branches (29.1%) reduction in pods/ plant (54.6%) and (44.5) reduction of kernels/ plant. There was a higher yield in the protected plots with 2050 kg/ ha due to spray of insecticides when compared to unprotected plots with 1123 kg/ ha, with a yield increase of 82.5%.

Keywords

Groundnut, Spodoptera litura, Aproaerema modicella, Empoasca kerri, Scirtothrips dorsalis, Insecticides, Yield losses, Attributing characters, Protected plot, Unprotected plots