摘要
毒力测定表明,乌头乙醇提取物对蜀柏毒蛾有较高毒力,24 h致死中浓度LC50为168.9μg/g。室内试验表明800μg/g和600μg/g两个剂量对蜀柏毒蛾均有明显的药效,随着施药时间的增加,死亡率逐渐增大,施药72 h后的校正虫口退减率分别达到100%和95.13%,与0.3%印楝素乳油1 200倍液无显著差异。根据上述结果,讨论了利用乌头提取物开发和研制新型植物源农药的前景。
Toxicity tests showed the ethanol extracts of Aconitum carmichaeli were promisingly toxic against Parocneria orienta, the LC50 value in 24 h was 168.9 μg/g. Indoor experiments showed the dosages of 800 μg/g and 600 μg/g both had evident effect. Along with the increase of time, mortality enlarged gradually. The mortality reached 100 % and 95.13 % respectively 72 h after the treatments, which was not significantly different from that treated with 0.3% azadirachtin EC diluted to 1200 times. Based on the above results, perspective of utilization of the extracts of Aconitum carmichaeli to develope new botanic pesticide was discussed.
出处
《中国森林病虫》
北大核心
2007年第6期31-32,共2页
Forest Pest and Disease
关键词
乌头
提取物
蜀柏毒蛾
生物活性
Aconitum carmichaeli
extracts
Parocneria orienta
bioactivity
