飞机草微乳剂不同pH值对荔枝蒂蛀虫产卵驱避活性测定  

Effects of different pH of Eupatorium odoratum micromulsion against Conopomorpha sinensis oviposition deterrent activity

作　　者：江世宏[1] 陈晓琴[1] 黄安康[1,2] 李广京[1] 

机构地区：[1]深圳职业技术学院应用化学与生物技术学院,广东深圳518055 [2]湖南农业大学资源与环境学院,湖南长沙410128

出　　处：《广西农业科学》2009年第1期47-48,共2页Guangxi Agricultural Sciences

基　　金：深圳市科技计划项目(05KJba002)

摘　　要：将18%飞机草微乳剂配制成含有效成分飞机草氯仿萃取物250μg/mL的药液,通过标准滴定液调节其pH值成9个不同梯度,放置1周后对荔枝蒂蛀虫产卵驱避活性进行测定,以明确该微乳剂中所含有效成分在不同酸碱度条件下的稳定性。结果表明,18%飞机草微乳剂在pH5.0～9.0的环境下具有较强的稳定性,该微乳剂中的有效成分具有较广的酸碱度适应范围,但在pH6.0～9.0的环境下对荔枝蒂蛀虫的驱避效果较好。18% Eupatorium odoratum micromulsion was diluted to solution containing 250μg/ml of active ingredient, which was ready for preparing 9 different pH gradients. After one week＇s placement, effects of different pH of 18% Eupa torium odoratum micromulsion against Conopomorpha sinensis oviposition deterrent were determined. The results showed that 18% Eupatorium odoratum micromulsion had strong stability while pH was 5.0-9.0. Although its effective gradient could be suitable for a broader acid-base range, its deterrent activity against Conopomorpha sinensis oviposition showed better effect when pH was 6.0-9.0.

关 键 词：飞机草微乳剂 荔枝蒂蛀虫 PH值 驱避活性 

分 类 号：S482.39[农业科学—农药学] S436.67[农业科学—植物保护]