Author: Jasmeena Qadir, Tajamul Islam, Somagaini Pavankumar, Ravi Kant and Shalini Aryan
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The uzi fly, Exorista bombycis (Louis) is an endoparasitoid causing significant crop losses upto the tune of 20% in the rainy season followed by 11-15% loss in winter and 1.0 – 3.0% loss in summer seasons. There is high demand of minimizing the use of chemicals for pest control in sericulture as a little toxicity may deteriorate healthy silkworm rearing and ultimately raw silk production. Nesolynx thymus (Girault) is a serious endo-larval parasitoid and inundative pupal parasitoid of the order Hymenoptera: Eulophidae. It possess remarkable biological characteristics of biological control such as short life span, potential for high parasitization, high host searching ability, docile for mass production with good adaptability under laboratory as well as field conditions. The eco-friendly method of using N. thymus for control of Uzi fly promotes sustainable solution and balance in the environment. N. thymus is the pupal endoparsitoid of almost all the species of Uzi fly including Blepheripa zebina, Exorista phillipinensis as well. The industrial production of N. thymus parasitoid is completed in two processes which involves production of housefly (Musca domestica) pupae and production of N. thymus pupae on housefly pupae. Many behavioral responses culminate while oviposition of gravid female of N. thymus to parasitizes (host pupae), Exorista bombycis. The host factors viz., pupae size, age and period of exposure to parasitoids influence the biology of parasitoids. The optimization of host factors influencing the parasitisation by parasitoid may enhance the efficacy of N. thymus and its mass multiplication and production in control of Uzi fly
Eco-friendly, Exorista bombycis, Nesolynx thymus, Musca domestica, parasitoid, uzi fly
The mass production of Nesolynx thymus requires little space and investment. The biological means of control are always eco-friendly, long lasting and solve the problem permanently. Hence, being cost-effective method with possession of no toxicity to silkworm and sericulture industry, it is highly recommended as effective means of pest control in sericulture for checking the Uzi infestation
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