摘要
用3龄菜青虫(Pieris rapae L.)对半夏(Pinellia ternata Breit)块茎和苦楝(Melia azedarach L.)叶、果的汁液进行了室内杀虫活性的测定。结果表明:半夏对菜青虫的胃毒作用和室内防治效果较高,72h校正死亡率分别达75.8%和82.3%,触杀作用为38.6%,具有开发应用的潜力。
Insecticidal activity of juice from Pinellia ternata and Melia azedarach and their effects on the larvae of Cabbage butterfly (Pieris rapae L.) were studied in lab .The results indicate that the juice from Pinellia ternata has the strongest stomach toxicity because its revised motality is as high as 75.8% and it possesses the best effectiveness of controlling cababage butterfly in lab, compared with the others of 82.3%. Therefore, the value of application of Pinellia ternata is to be studied further.
出处
《江西植保》
2004年第1期1-2,共2页
Jiangxi Plant Protection
关键词
半夏
苦楝
杀虫活性
菜青虫
Pinellia ternata
Melia azedarach
insecticidal activity
cabbage butterfly
