Screening of Castor Germplasm against Tobacco Caterpillar Spodoptera litura F and Castor Semilooper Achaea janata L

Authors

  • B. Keerthana Department of Entomology, SV Agricultural College, Tirupati 517502, ANGRAU, Andhra Pradesh
  • M. S. V. Chalam Department of Entomology, SV Agricultural College, Tirupati 517502, ANGRAU, Andhra Pradesh
  • P. Radhika Entomology, Agricultural Research Station, Anantapur 515701, Andhra Pradesh
  • P. Lavanya Kumari Department of Statistics and Computer Applications, SV Agricultural College, Tirupati 517502, ANGRAU, Andhra Pradesh

DOI:

https://doi.org/10.55446/IJE.2024.1858

Keywords:

Spodoptera litura, Achaea janata, genotypes, GC-3, ICS-164, defoliation, defoliation scale, resistant, moderately resistant, minimum, larval incidence, larvae plant-1

Abstract

Twenty three castor genotypes screened against two important pests viz., Spodoptera litura (F) and Achaea janata (L). The results revealed that none of the genotypes were resistant. Based on the defoliation scale nine genotypes viz., GC-3 (9.86% defoliation), ICS-164 (10.13%), DCH-519 (10.48%), YTP-1 (10.92%), DCS-107 (11.78%), DCS-8g (12.70%), DCS-9 (12.72%), 48-1 (13.63%) and GC-2 (14.33%) were categorised as tolerant to S. litura and A. janata. Three genotypes viz., Haritha (21.58%), SKI-215 (23.81%) and SKI-291 (24.07%) were categorised as moderately tolerant. In these genotypes, the minimum larval incidence range was 0.31 to 0.51 larvae plant-1 in case of S. litura, whereas the minimum larval incidence range was 0.49 to 0.64 larvae plant-1 in case of A. janata.

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Published

2024-02-01

How to Cite

Keerthana, B., Chalam, M. S. V., Radhika, P., & Lavanya Kumari, P. (2024). Screening of Castor Germplasm against Tobacco Caterpillar <i>Spodoptera litura</i> F and Castor Semilooper <i>Achaea janata</i> L. Indian Journal of Entomology, 1–3. https://doi.org/10.55446/IJE.2024.1858

Issue

Section

Research Communications

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