Fig. (1) Utilisation of sole carbon sources by pure cultures of Phytophthora cryptogea (PC), Phytophthora capsici (PCP), Pythium aphanidermatum (PA), Fusarium oxysporum f.sp. radicis- lycopersici (FORL) and Fusarium solani (FO) on the basis of (A) average well colour development and (B) number of positive wells.