The trees are a member of the same family as poison ivy, and like poison ivy, cashew plants contain a toxin called urushiol. It's found in the plant itself and the brown oil inside a nut's shell.

They will be benefitting from selling cashew husks and other by-products.” B.T. Dora, CPM’s Devarapalli mandal secretary, urged the government that the import of foreign cashew nuts should be ...