Journal of Entomological Research

SCOPUSWeb of Science
  • Year: 2024
  • Volume: 48
  • Issue: 3

Studies on susceptibility of paddy genotypes to Sitotroga cerealella (Oliver)

Department of Entomology, Agricultural College, Bapatla - 522 101, Andhra Pradesh, India

1Department of Plant Pathology, District Agricultural Advisory and Transfer of Technology Centres, Darsi - 523 247, Andhra Pradesh, India

Abstract

A total of 38 released and pre-released paddy genotypes were screened for their susceptibility to S. cerealella. Screening was carried out under no choice test. The paddy genotypes viz., MTU-1290, MTU-1156, NLR-3041, NLR-30491, NLR-28600, NLR-40058, BPT-2776, BPT-2766, MTU-1184 when screened against S. cerealella recorded a prolonged mean developmental period, lower susceptibility index (9.80 - 12.65) with lesser adult emergence, were categorized as Susceptible varieties. All the other varieties were found highly susceptible to S. cerealella. The per cent weight loss of paddy genotypes due to infestation by S. cerealella ranged from 2.16 to 14.78 in no choice. Similarly, the per cent grain damage of paddy genotypes due to infestation by S. cerealella ranged from 1.67 to 12.33% in no choice test.

Keywords

Angoumois grain moth, Resistant, Susceptible, No choice test