Distribution of mineral nutrients within the leaves of common dandelion (Taraxacum officinale) galled by Phanacis taraxaci (Hymenoptera: Cynipidae)

agallas agentes nocivos facteur nuisible feuille galle hojas hymenoptera injurious factors insect pests insecte nuisible leaves minerales minerals nutritive value ontario pest insects plant analysis plant galls taraxacum valeur nutritive valor nutritivo