摘要
采用浸液法和药膜法测定了黄皮种子提取物对朱砂叶螨的生物活性。结果表明,黄皮种子甲醇粗提物对朱砂叶螨具有良好的触杀活性,其质量浓度为10 mg/mL时,对成螨和卵的校正死亡率分别为95.77%和98.32%,其LC50分别为0.876 3、1.2737 mg/mL;同时,对朱砂叶螨表现出良好的驱避和产卵抑制活性,在质量浓度为20 mg/mL时,对朱砂叶螨24 h的产卵抑制率和驱避率分别达到95.96%和88.79%。试验还表明,黄皮种子中的活性成分主要存在于石油醚中,其甲醇粗提物的石油醚萃取液质量浓度为2 mg/mL时,对朱砂叶螨成螨和卵的校正死亡率分别为100%和93.16%。
Bioactivity of Clausena lansium seed extracts against Tetranychus cinnabarinus was determined by method of residual film and steep. The results indicated that methanol extract at quality concentration of 10 mg/mL showed higher contact toxicity activity against T. cinnabarinus with adjusted mortalities of adult mite and egg of 95.77% and 98.32%, and their LCs0 were 0.876 3 and 1.273 7 mg/mL respectively. It also showed good activity of ovipositing inhibition, rates of ovipositing inhibition and repellent reached 95.96% and 88.79% at quality concentration of 10 mg/mL. Active ingredient in C. lansium seeds mainly existed in extract of petroleum, and adjusted mortalities of adult mite and egg at quality con- centration of 2 mg/mL reached 100% and 93.16%, respectively.
出处
《中国植保导刊》
北大核心
2013年第10期5-9,共5页
China Plant Protection
基金
广州市科技计划项目(2010Y1-C27)
关键词
黄皮种子
提取物
朱砂叶螨
生物活性
Clausena lansium seed
extract
Tetranychus cinnabarinus
bioactivity
