The oviposition and movement behaviour of bt resistant and bt susceptible helicoverpa armigera (hubner) (lepidoptera noctuidae) on bt cotton and non bt cotton plants

... neonates on leaves of Bt cotton and non -Bt cotton 63 4.2.5 Drop-off behaviours of Bt- resistant and -susceptible neonates of H armigera on different structures of Bt and non -Bt cotton. .. 2: Oviposition site selection and the survival of Bt- resistant and Bt- susceptible larvae of Helicoverpa armigera on Bt and non -Bt cotton Here we determine the oviposition preference of H armigera. .. development of my research Section (chapter 2) deals with the oviposition behaviour of female moths on Bt cotton and non -Bt cotton The oviposition preferences of moths among and within cotton plants