Un team di esperti dell’Istituto federale di ricerca per la foresta la neve e il paesaggio, ha indagato su quali fossero i fattori scatenanti responsabili delle morie di pini e di pini silvestri che si sono verificate sui pendii montani del vallese a partire dagli anni ’90. Ne parliamo con l’ingegnere forestale Marco Conedera al microfono di Lina Simoneschi Finocchiaro.
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