How do wind velocity and light intensity influence host-location success in Cotesia glomerata (Hym., Braconidae)?

Wind and light are major climatic factors which affect host-location proces s in parasitoids. but these environmental effects have not been studied tho roughly. Wind-tunnel experiments were designed to dissect how changes in wi nd velocity and light intensity influence Eight initiation, flight orientat ion and host-searching efficiency in Cotesia glomerata. This Study uncovers the influences of changes in wind velocity and light intensity on differen t phases of host-location process in the parasitoid. These results suggest that a cloudy and/or windy weather may reduce the success of host location by C. glomerata because such conditions suppress flight initiation. cause f ailure to orientate flights to the herbivore-infested plant and hamper host -searching activity on the plant.