Field Screening of Sesame Genotypes against Leaf Webber and Capsule Borer (Antigastra catalaunalis Dup.) and Gall Fly (Aspondylia sesami Felt)

Abstract

Field screening of sesame (Sesame indicum L.) germplasm with forty three genotypes including susceptible and resistant checks were screened to know about reaction pattern against the leaf webber and capsule borer (Antigastra catalaunalis Dup) and gall fly (Aspondylia sesami Felt) under field conditions (natural field infestation) during 2023 at RARS, Jagtial, Telangana. Pest damage was recorded at three phenological stages viz., vegetative, flowering, and capsule formation and genotypes were categorized based on percent damage. None of the screened genotypes were found free from infestation. At vegetative and flowering stage thirty three genotypes were found resistant showing plant damage less than ten per cent, however at capsule formation stage twenty three genotypes were found moderately resistant showing capsule damage less than 10 per cent. On the basis of overall performance (mean damage) at all the three stages of plant growth the entries viz., JCS 4805, JCS 4835, JCS 4671, JCS 3196, RF2, JCS 3096& Swetha showed moderately resistance reaction against leaf webber and capsule borer and for gall fly only one genotype JCS 3090 recorded resistant with 4.42 flower damage. The identified resistant germplasm can be utilized as valuable and promising parents in sesame breeding programmes.