author(s)
Sumitha and MG Hegde

abstract
A comparative biology of Maruca vitrata was carried out on greengram and pigeonpea under laboratory conditions with room temperature ranging from 26 to 27 ^oC at Department of Entomology, UAS, Dharwad, Karnataka. The M. vitrata culture was maintained on greengram and pigeonpea under laboratory conditions and recorded stage-wise comparison of developmental stages and biometrics on both the hosts. Total larval period ranged 15 to 17 days on greengram with an average of15.97 ± 1.407 days and that of on pigeonpea was 15 to 19 days with an average of 17.63 ± 1.17 days. The pupation took place in the webs of greengram and pigeonpea leaves within silken cocoon. The recorded pupal duration in greengram and pigeonpea was respectively 7.78 ± 0.46 and 8.49 ± 0.584 days. The longevity of male moth ranged from 4-6 days on both hosts with an average of 5.29 ± 0.33 and 5.19 ± 0.85 on greengram and pigeonpea, respectively. Whereas the female adult average longevity was 7.30 ± 0.330 and 7.04 ± 0.69 days, respectively on greengram (range = 6-8days) and pigeonpea (5-8days). The duration of total developmental period of M. vitrata reared on greengram (34.00 ± 1.221) and pigeonpea (36.27 ± 1.728).