非寄主蔬菜及其提取物对菜粉蝶的驱避作用  

Repellent effect of non-host vegetables and their extracts on Pieris rapae L.

作　　者：吴利民[1,2] 吕文彦[2] 原国辉[1] 徐艳聆[2] 郭线茹[1] 罗梅浩[1] 

机构地区：[1]河南农业大学植物保护学院,郑州450002 [2]河南科技学院资源与环境学院,新乡453003

出　　处：《中国生态农业学报》2010年第6期1311-1316,共6页Chinese Journal of Eco-Agriculture

基　　金：河南省重点科技攻关项目(082102150003)资助

摘　　要：在室内和田间测定了番茄、茴香、荆芥、莴苣、香菜和丝瓜6种非寄主蔬菜对菜粉蝶的驱避作用。室内测定结果表明,用非寄主蔬菜粗提物处理甘蓝后,菜粉蝶成虫对甘蓝的选择反应率降低,尤其是交配雌蝶对荆芥、茴香、番茄和莴苣提取物处理的甘蓝的选择反应率最低,分别仅为3.67%、4.30%、5.27%和8.26%。在非寄主蔬菜粗提物处理过的甘蓝苗上,成虫的产卵量明显减少,其中以番茄、茴香和荆芥粗提物的驱避活性最强,处理后1d的非选择性产卵驱避率分别为91.04%、75.54%和71.67%,选择性产卵驱避率分别为94.64%、79.66%和78.96%。田间试验结果表明,甘蓝田套种番茄、茴香和荆芥后,可使田间落卵量分别减少68.80%、62.62%和55.09%,这3种非寄主蔬菜对菜粉蝶的有效驱避距离分别为4m、2m和2m左右。因此,可以通过在甘蓝田套种非寄主蔬菜或喷洒其粗提物驱避菜粉蝶,减少幼虫发生为害。To evaluate the control effects of non-host vegetables on imported cabbage butterfly Pieris rapae, bioassays were conducted to investigate the repellent effects of 6 non-host vegetables such as tomato （Lycopersicon esculentum）, fennel （Foeniculum vulgare）, catnip （Nepeta cataria）, lettuce （Lactuca sativa）, coriander （Coriandrum sativum） and towel gourd （Luffa cylindrical） on the butterfly in laboratory and field experiments. Indoor bioassay results show that selection response percentage of adult butterfly to cabbage reduces after treated with non-host vegetable extracts. The selection response percentages of mated female butterfly to cabbages treated with catnip, fennel, tomato and lettuce extracts are particularly low, only 3.67%, 4.30%, 5.27% and 8.26% respectively. Egg numbers laid by adult butterflies in cabbage seedlings treated with non-host vegetable extracts significantly reduce as well. Repellent activities of tomato, fennel and catnip extracts are strongest. After one day of treatment, the percentages of no-choice oviposition repellent are 91.04%, 75.54% and 71.67%, and those of choice oviposition repellent are 94.64%, 79.66% and 78.96% respectively. Field test results show that the amount of butterfly eggs in per cabbage plant could drop by 68.80%, 62.62% and 55.09% respectively in intercropping filed of cabbage with tomato, fennel and catnip. Effective repellent distances of the three non-host vegetables are 4 m, 2 m and 2 m respectively. Therefore, imported cabbage butterfly could be repelled by intercropping non-host vegetables or spraying not-host vegetable extracts in the cabbage fields.

关 键 词：菜粉蝶 非寄主蔬菜 甘蓝 套种 驱避作用 选择反应率 驱避活性 有效驱避距离 

分 类 号：Q965[生物学—昆虫学]