Abstract: Experiments were conducted in the field to response five radiation induced jute (Corchorus olitorius L.) mutants against jute stem weevil, Apion corchori Marshall. Evaluations were made on the basis of percentages of plants infested by weevil and number of knots found on each mutant. It was found that the significantly difference between five jute mutants with respect to infestation by jute stem weevil. The mutant OM-48 and OM-51 recorded higher percentages of infested plants and increased number of knots than the check variety O-9897. Mutant OM-1, OM-42, OM-47 and check variety O-9897 were rated as moderately resistant (with 1.88 to 3.31 knots/plant) to jute stem weevil. It was also found that the lower parts of the plants (1-30 cm) had more number of knots than the upper parts.