Zone de Texte: Probability of introduction: high
 	Many pathways, 
 	present in many countries, 
 	almost nothing is done to 	limit the spread of this pest 	from one country to another


Probability of spread: high 
 	natural and 
 	human assisted dispersal 	(more effective)
Zone de Texte: Photo: Christelle Chevrat Zone de Texte: Gritta Schrader, Zdének Chromy, István Dancza, Richard Baker 		back to home page Central Science Laboratory

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