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A field experiment was conducted in Dharwad, Karnataka, India, during the kharif 2006 to evaluate 11 soyabean genotypes (DSb-1, Bragg, PK 1029, JS 93-05, KHSb-2, MRSB-342, DSb 6-1, Monetta, MACS-450, NRC-67 and JS-335) against major defoliator pests (Spodoptera litura, Thysanoplusia orichalcea, Spilarctia obliqua and Helicoverpa armigera). The lowest percentage of defoliation was observed in KHSb-2 (14.33%), followed by DSb-1 (21.33%). KHSb-2, DSb-1 and Bragg were categorized as highly resistant, whereas PK1029, NRC-67, MACS-450 and MRSB-342 were classified as moderately resistant. DSb-6-1 and JS 93-05 were susceptible, and JS 335 and Monetta were highly susceptible. Percent pod damage was lowest in Monetta (20.75%), JS 93-05 (21.21%), DSb-1 (26.41%), PK 1029 (26.67%) and KHSb-2 (27.82%), which were on a par with the control JS 335 (17.68%). JS-335, Monetta …