Comparing Diagnostic Protocols for <i>Phytophthora ramorum</i> in Rhododendron Leaves

Fig. 2. Combined results for the plant samples collected and tested for Phytophthora ramorum using the species-specific USDA-validated diagnostic protocols nested PCR (PCR) and culture plating (culture).



Image from Plant Health Progress article:
Comparing Diagnostic Protocols for Phytophthora ramorum in Rhododendron Leaves