Study on the scanning electron microscopy of Nesolyx thymus a hyperparasitoids of Uzi Fly in Muga CultureAbstract :
Muga silkworm, Antheraea assamensis Helfer (Lepidoptera: Saturniidae), yields golden yellow silk, is unique to Brahmaputra river valley of Assam. Among different pests reported on muga silkworm, uzi fly Exorista bombycis is one of the serious endo-parasitoid particularly during Nov-April causing 20-90% loss in silkworm growing areas and post winter (Dec-Mar). Chemical pesticides are harmful to this insect along with the environment ,there for biological control need to adopt in muga culture. Nesolyx thymus, a hyperparasitoids of uzi fly are using as a biological agent to control uzi infestation in muga culture. This hyperparasitoids are attack the immature pupae to lay eggs on the surface and develop inside to complete there life cycle. The insect killed the uzi pupa and emerge out as adult flies. In this study, Scanning electron microscope (SEM) was done to shows how development occure inside the pupae.
Uzi, hyper-parasitoids, SEM, muga culture.