绣球小冠花等35种植物提取物对粘虫的杀卵作用研究

 采用浸卵法测定了绣球小冠花等３５种植物提取物对粘虫的杀卵作用。结果表明，欧当归种子丙酮提取物、蛇床种子氯仿提取物、蓖麻种子甲醇、石油醚与乙酸乙酯提取物、绣球小冠花根甲醇、乙醇、丙酮与乙酸乙酯提取物对粘虫具有很强的杀卵作用，５ｄ的校正未孵化率均达１００％；欧当归根７５％ 甲醇与石油醚提取物、欧当归种子甲醇与石油醚提取物具有较强的杀卵作用，校正未孵化率分别为３９．６５％ 与３５．３１％，５５．９９％ 与３４．５１％，绣球小冠花根、曼陀罗种子和苘麻种子石油醚提取物具有一定的杀卵作用，校正未孵化率分别为１１．４５％，１１．７９％ 和１０．６０％，其他提取物杀卵作用很弱或无杀卵作用。绣球小冠花、欧当归、蛇床和蓖麻４ 种高效杀卵植物具有研究和开发利用价值。

A study on ovicidal activities of extracts from 35 species of plants (including Coronilla varia) against Mythimna separata

The ovicidal activities of extracts from 35 species of plants(including Coronilla varia) against Mythimna separata were measured by immersion methods.The acetone extract from Levisticum officinale seeds,chloroform extract from Cnidium monnieri seeds,methanol,petroleum ether and ethyl acetate extracts from Ricinus communis seeds,methanol,ethanol,acetone and ethyl acetate extracts from C.varia roots all had strong ovicidal activities against M.separata.Corrected non-hatching ratios of eggs were 100% after 5 days treatment.Extracts of 75% methanol,and petroleum ether from L.officinale roots and of methanol and petroleum ether extracts from L.officinale seeds had strong ovicidal activities with corrected non-hatching ratios of eggs of 39.65%,35.31%,55.99%,34.51% respectively.Petroleum ether extracts from C.varia roots,Datura stramonium seeds and Abutilon theophrasti seeds had some ovicidal activities-corrected non-hatching ratios of eggs were 11.45%,11.79% and 10.60% respectively.Other extracts had no ovicidal activity.Four species of plants(C.varia,L.officinale,C.monnieri and R.communis) with effective ovicidal activities are worth further research and development.