巴氏新小绥螨对相似穿孔线虫的捕食作用及在植物上的分布  

On Predatory Ability of Neoseiulus Barkeri on Radopholus Similis and Its Distribution on Plant

作　　者：周万琴[1] 谢辉[1] 李敦松[2] 王恩东[3] 张宝鑫[2] 徐春玲[1] 

机构地区：[1]华南农业大学植物线虫研究室/华南农业大学植物检疫线虫检测与防疫研究中心,广州510642 [2]广东省农业科学院植物保护研究所,广州510640 [3]中国农业科学院植物保护研究所/农业部作物病虫害综合治理重点实验室,北京100193

出　　处：《西南师范大学学报（自然科学版）》2016年第1期62-65,共4页Journal of Southwest China Normal University(Natural Science Edition)

摘　　要：在实验室条件下评价了巴氏新小绥螨对相似穿孔线虫的捕食作用,并通过盆栽接种研究了其在植株和根际的垂直分布情况.结果表明,巴氏新小绥螨能够取食线虫,每头雌成螨平均每天捕食相似穿孔线虫49.50头;在盆栽茄子根际释放巴氏新小绥螨10d,20d和30d后,在根际土壤、表层土壤和地上植株均有分布,在10d时分布在这3个位置的数量差异不明显,但随着释放时间的延长,可能由于土壤中缺乏食物,根际土壤中分布数量显著少于植物地上部分.The predatory ability of Neoseiulus barkeri on Radopholus similis has been evaluated under the laboratory conditions,and the vertical distribution of N.barkeri on plant and rhizosphere researched.The results show that N.barkeri is able to prey on R.similis and the number of R.similis consumed by a female mite in 24 hwere 49.50.A certain number of N.barkeri have been found in overground part,2cm soil surface and rhizosphere when it releases into the rhizosphere soil of potted eggplant after 10 days,20days and 30 days respectively,but there are no significant differences.There might be due to no food in soil,with the time extended,the number of N.barkeri in rhizosphere is significant less than in overground.

关 键 词：巴氏新小绥螨 捕食作用 垂直分布 相似穿孔线虫 

分 类 号：S433.7[农业科学—农业昆虫与害虫防治]