La pericolosa Vespa velutina è arrivata pure in Ticino. Ma non è allarme. E' stato trovato un solo esemplare: a Ludiano in Valle di Blenio. Da un apicoltore locale. E secondo i primi approfondimenti del Dipartimento del territorio (DT) si tratta di un individuo isolato, un’operaia, probabilmente introdotta da qualche turista o da un trasporto merci. In ogni caso però, "le ricerche si protrarranno ancora per alcuni giorni e verranno riprese in primavera", assicura il DT.
Un nido del micidiale predatore
Il calabrone asiatico (Vespa velutina) è stato segnalato per la prima volta in Europa nel 2004 in Francia, nella regione di Bordeaux. Da allora si è diffuso in buona parte dell’Europa (Spagna, Portogallo, Belgio, Germania, Gran Bretagna, Scozia e Olanda).
Il calabrone asiatico
RSI Servizi 12.10.2015, 10:32
Nel 2016 è stato avvistato per la prima volta anche in Svizzera, nel Canton Jura. Nel corso del 2020 è infine stato segnalato nei Cantoni Ginevra e Vaud, dove sono stati anche reperiti e distrutti dei nidi.
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