Biology and morphometrics of mango fruit fly, Bactrocera dorsalis in vitro.
Devi M. B., Devi A. B., Devi A. K., Singh K. M.
Author Affiliation: Laboratory of Entomology, P. G. Department of Zoology, D.M. College of Science, Imphal - 795 001, India.
Annals of Plant Protection Sciences 19 : 481-483
Abstract : The biology and morphology of B. dorsalis reared on fruits of mango in vitro (25±2°C and 70±5% relative humidity) were studied. The female adult laid eggs just below the epidermis. A single female could lay 100-120 eggs per month. The length of the egg varied from 0.9 to 1.1 mm. Three larval instars and two moults were observed. After 3 days, the eggs hatched, and the larvae fed on the pulp of the fruit. The infested fruit could be identified by the presence of brown resinous juice that flowed out of the punctures and hardened on the fruit. Pupation generally occurred on soil (160 mm below the soil surface), lasting 9-12 days. The pupae were barrel-shaped and brown to ochraceous in colour. The ferruginous brown adults had hyaline forewings and hind wings that were modified as a pair of halters. The adult measured 6.5-7.1 mm in length and 2.0-2.2 mm in width.