Welcome to Wikipedia. Although everyone is welcome to contribute constructively to the encyclopedia, adding content without citing a reliable source, as you did to Plant defense against herbivory, is not consistent with our policy of verifiability. Take a look at the welcome page to learn more about contributing to this encyclopedia. If you are familiar with Wikipedia:Citing sources, please take this opportunity to add references to the article. Specifically a citation for statements "...a recent study on Salix spp." and "support for this hypothesis is present in the literature, and some scientists consider..." (preferably a single review article for the latter). Please let me know if you require assistance. Thank you again for your additions.--DO11.10 (talk) 20:13, 12 December 2008 (UTC)
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