Zone de Texte: BC of Opuntias: a controversial experience Zone de Texte: Migration or commercial trade? Cactoblactis cactorum left Caribbean islands and landed accidentally in Florida where it attacked an indigenous Opuntia -> strong scientific conflict between ecologists and biocontrollers -> towards elimination of BC in the US for the most virulent opponents Guilty natural enemy vs innocent natural enemy Diversity of natural enemies for each target=key point: ex: Dactylopius sp. C. cactorum in Med basin?

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