Compatibility of Spinosad with Trichogramma Chilonis (Ishii) (Hymenoptera: Trichogrammatidae) in Integrated Pest Management of Sitotroga Cereallela (Report‪)‬

Byline: Ahmad-Ur-Rahman Saljoqi, Mehreen Nawaz, Abid Farid and Imtiaz Ali Khan Abstract.- With a view to use Trichogramma chilonis as a parasitoid in the integrated pest management, the effect of different concentrations of Spinosad (0.2, 0.15. 0.1 0.05 and 0.01%) was studied on the parasitoid under laboratory conditions. The results showed that 0.2% gave the minimum parasitism in egg, larva and pupa and during oviposition preference test. At 0.01% concentration, the spinosad showed less toxicity to the parasitoid in oviposition preference test followed by the larval stage. In egg stage, low percent parasitism showed toxicity of chemical to the parasitoid. Emergence time data followed almost same pattern as observed in case of percent parasitism. The 0.2, 0.15 and 0.10% concentrations increased the emergence time of parasitoid in pupal stage and oviposition preference test. Significantly lower emergence time was observed in 0.05 and 0.01% in larval stage. Significantly lower adult longevity was observed in all stages at all concentrations.