author(s)
Chaitra HS, PK Borad and Sushma Deb

abstract
A study was conducted at B. A. College of Agriculture, Anand Agricultural University, Anand during summer and kharif seasons of 2015 to evaluate nine biopesticides against pests of sesame. Among the tested biopesticides, Neem Seed Kernel Extract (NSKE) 5%, neem oil 0.3% and B. bassiana 0.1% effectively managed whitefly and leaf webber incidence in both the seasons and also produced higher seed yield than control viz. 56.65, 50.23 and 26.08% in plots treated with NSKE 5%, neem oil 0.3% and B. bassiana 0.1%, respectively during summer. In kharif, seed yield over control was 93.27, 72.21 and 71.61% in NSKE 5%, B. bassiana 0.1% and neem oil 0.3%, respectively. Avoidable losses in neem oil 0.3% and B. bassiana 0.1% were 4.10 and 19.51% during summer and 11.21 and 10.90% during kharif, respectively. The NICBR of NSKE 5%, neem oil 0.3% and B. bassiana 0.1% were 1:5.93, 1:8.50 and 1:1.87 during summer, whereas it was 1:7.90, 1:9.36 and 1:6.12 in kharif season, respectively.