Seasonal variations of soilborne Phytophthora species in declining Quercus suber stands in Sardinia (Italy)

Salvatore Seddaiu, Carolyn Riddell, Clizia Sechi, Pino A. Ruiu, Luca Sarais, Antonio Mulas, Antonietta Mello, Andrea Brandano, Peter Cock, Sarah Green, Bruno Scanu