Browsing by Author "Kesava Bhat, S."

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    Biology and feeding potential of Parena nigrolineata (Chaudoir) (Coleoptera: Carabidae), a predator of the coconut caterpillar Opisina arenosella Wlk
    (1987-04) Pillai, G.B.; Kesava Bhat, S.
    A method to rear P. nigrolineata in the laboratory was developed. Biology and feeding potential of the predator both in the adult and immature stages are discussed. The rate of predation in the grub phase worked out to 0.32 fourth instar caterpillar of 0. arenosella per grub per day. Adult female beetle fed @ 0.34 and male beetle 0.31 fourth instar caterpillar per beetle per day. A scelionid Xenomerus sp- was recorded as an egg parasitoid of P. nigrolineata in the field. Intensity of its natural parasitism was quite high during rainy season and this was responsible for minimising the population of the beetle in the field.