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| grafiosi dell'olmo (Ophiostoma novo-ulmi, nosogenum:Ceratocystis ulmi = Ceratostomella ulmi = Ophiostoma ulmi, Ophiostoma novo-ulmi, nosogenum:Ceratocystis ulmi = Ceratostomella ulmi = Ophiostoma ulmi); moria degli olmi (Ophiostoma novo-ulmi, nosogenum:Ceratocystis ulmi = Ceratostomella ulmi = Ophiostoma ulmi, Ophiostoma novo-ulmi, nosogenum:Ceratocystis ulmi = Ceratostomella ulmi = Ophiostoma ulmi) | |||