In Brazil, there is some interesting story about how Cacau trees were contaminat...

In Brazil, there is some interesting story about how Cacau trees were contaminated with a plague called "vassoura de bruxa" (Crinipellis perniciosa). Many trees were found with some contaminated branches tied to them.

In portuguese there are some news (ex.: http://atarde.uol.com.br/bahia/salvador/noticias/1257586-ent...) considering that it was some kind of bioterrorism.