8OKONKWO E U,OKPYE W I.The efficacy of four seed powders and the essential oils as protectants of cowpea and maize grain against infestation by Callosobruchus maculates (Fab.) (Coleoptera:Bruchidae) and Sitophilus zeamais Motsch.(Coleoptera:Curculionidae) in Nigeria[J].International Journal of Pest Management,1996,42:143-146.
9TABASHNIK B E,MCGAUGHEY W H.Resistance risk assessment for single and multiple insecticides:response of Indian meal moth(Lepideptera:Pyralidae) to Bacillus thuringiensis[J].Journal of Economic Entomology,1994,87(4):834-841.
10SANDNER H,SZCZYPIORSKA M,WEGOREK W.An integrated use of pathogen of insects and insecticide in plant protection[J].Plant Protection Institute Bulletin,1972,52:43-54.