苦楝中几种杀虫有效成分对菜青虫和亚洲玉米螟的生物活性

• EFFECTS OF SEVERAL INSECTICIDAL PRINCIPLES FROM CHINABERRY,MELIA AZEDARACH ON THE IMPORTED CABBAGE WORM,PIERIS RAPAE AND THE ASIATIC CORN BORER,OSTRINIA FURNACALIS