沙芥间作套种非嗜食植物对小菜蛾防治作用的初步研究  

Preliminary Study on Prevention Effect of Intercropping Non-preferred Plants in Pugionium cornutum Field against Plutella xylostella

作　　者：徐世才[1] 王莉[1] 李婧[1] 陈鑫[1] 张曼[1] 

机构地区：[1]延安大学生命科学学院,陕西延安716000

出　　处：《江西农业学报》2016年第9期42-45,共4页Acta Agriculturae Jiangxi

基　　金：陕西省高水平大学建设专项资金"生态学"(2012SXTS03);陕西省延安市科学科技惠民项目(2014HM-04);国家级大创项目(201510719278)

摘　　要：为探究间作套种沙芥防治小菜蛾的效果及田间布局最适方案,以间作套种4种小菜蛾非嗜食植物(花椒、辣椒、芫荽、番茄)为处理,以无间作沙芥田为对照。结果表明,室内试验4种植物对小菜蛾有不同程度的产卵趋避效果,番茄的趋避作用显著高于其他3种,趋避率高达80%以上。田间试验表明,在间作间隔为2.5、5.0、10.0 m的试验下,趋避效果差异并不显著,说明每隔10 m间作1行番茄就能起到很好的趋避效果,这对今后沙芥无公害种植提供理论依据。In order to explore the prevention effect of intercropping non-preferred plants in Pugionium cornutum field against Plutella xylostella, and to ascertain the optimal field layout scheme, we intercropped 4 species of plants （pepper, hot pepper, co- rainder, and tomato）, to which Plutella xylostella does not prefer, and took the un-intercropped Pugioniurn cornutum field as the check. In laboratory test, these 4 species of non-preferred plants had different oviposition-repelling effects on Plutella xylostella, and tomato had a significantly higher oviposition-repelling rate （over 80% ） than the others. In field test, there was no significant difference in repelling effect among 4 species of plants when their intercropping interval was 2.5, 5.0 or 10.0 m, indicating that intercropping tomato 1 line every 10 m in Pugionium cornutum field can obtain very good repelling effect.

关 键 词：非嗜食植物 沙芥 小菜蛾 趋避效果 

分 类 号：S436.344[农业科学—农业昆虫与害虫防治]