印楝素对不同龄期茄二十八星瓢虫的毒力及田间防效
李兆防
Laboratory Toxicity and Field Efficacy of Azadirachtin to Henosepilachna vigintioctopunctata (Fabricius) in Different Instars
LI Zhao-fang
中国蔬菜 . 2009, (10): 55 -58 .