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。
译 名：
Preliminary Study on Prevention Effect of Intercropping Non-preferred Plants in Pugionium cornutum Field against Plutella xylostella
作 者：
XU Shi-cai;WANG Li;LI Jing;CHEN Xin;ZHANG Man;School of Life Science,Yan'an University;
关键词：
Non-preferred plant;;Pugionium cornutum;;Plutella xylostella;;Repelling effect;;Intercropping
摘 要：
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,corainder,and tomato),to which Plutella xylostella does not prefer,and took the un-intercropped Pugionium 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.
