Vol. 11, Issue 12 (2022)

A laboratory experiment on screening of paddy genotypes was conducted at Department of Entomology, Agricultural College, Bapatla during, 2021-2022 to find out the resistant genotypes against Angoumois grain moth, Sitotroga cerealella. A total of 38 released and pre released paddy genotypes were screened for their susceptibility to S. cerealella. Screening was done in free choice test. In free choice test the paddy genotypes viz., MTU-1290, NLR-30491, NLR-28600 when screened against S. cerealella recorded a prolonged mean developmental period, lower susceptibility index (6.57-7.04) with lesser adult emergence, were categorized as “Susceptible” varieties. Remaining all the varieties were found to be falling under the category of moderately resistant and highly susceptible to S. cerealella infestation. The per cent weight loss of paddy genotypes due to infestation by S. cerealella were ranged from 0.88 to 14.28% in free choice test. Similarly, the per cent grain damage of paddy genotypes due to infestation by S. cerealella were ranged from 1.33 to 11.33% in free choice test.