Seasonal Incidence of Brinjal fruit and Shoot Borer (Leucinodes orbonalis Guen.) on Different Gerampalasm of Brinjal in Central U.P.

Seasonal incidence of brinjal germplasm against shoot and fruit borer, Leucinodes orbanalis Guen. was ecuted at vegetable research farm, Kalyanpur of University. A total of 40 germplasm of brinjal were evaluated for their reaction against fruit and shoot borer. The infestation of shoot borer appeared in 43 ^rd week (18–24 October). The shoot infestation mean varied between 0 to 20%.Six genotypes viz. Shoot infestation was correlated with weather parameters prevailing during the crop season. Maximum temperature played positive role (r=0.34 to 0.928) in multiplication of shoot borer of brinjal while minimum temperature was negative correlated (r=-0.5 to -0.819). The relative humidity exhibited its negative significance on pest multiplication. The wind velocity and rainfall showed no significance in multiplication of this pest, while evaporation rate showed significant positive effect (r=0.249 to 0.959) on the multiplication of infesting shoot. General Equilibrium position of fruit borer varied between 14.18 to 53.19% fruit infestation on different genotypes. Minimum fruit infestation being 14.18% was observed on germplasm HMB 10, followed by 18.54, 24.01, 24.07 and 24.29% fruit infestation on SM 195, Long Green Mysore, Pant Samrat and S-15-1 genotypes, respectively. Maximum infestation of 53.19% was noticed on H-129. As regard the impact of whether parameters on fruit infestation temperature (maximum r=0.029 to 0.769, minimum (r=0.038 to -0.0678) had negative impact on the pest infestation, while relative humidity showed its positive significance. Like wise shoot infestation, wind velocity and rainfall did not show their significance on fruit infestation in brinjal, while sunshine hour played significant negative role (r=0.03 to -0.682) in infestation of this pest.