Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=51516#.VG2zEmfHRK0 Author(s) Weizheng Li , Jingjing Hu , Jing Yang , Guohui Yuan * , Xianru Guo , Meihao Luo Affiliation(s) Plant Protection College, Henan Agricultural University, Zhengzhou, China . ABSTRACT Edible spices with strong smells or heavy tastes may be a promising resource of feeding deterrents. We compared the feeding deterrence of the ethanol extracts of 21 common spices against the larvae of a generalist pest species, Helicoverpa armigera , using a multiple-choice leaf disc bioassay. The results show that Zanthoxylum bungeanum extract (as a reference) always evoked significant feeding deterrence, while Piper nigrum...
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