Detection and Identification of <i>Botrytis</i> Species Associated with Neck Rot, Scape Blight, and Umbel Blight of Onion

Fig. 6. Appearance of isolates of Botrytis aclada, B. allii, B. byssoidea, B. cinerea, B. porri, and B. squamosa on potato dextrose agar (PDA) after 9 or 13 days of growth at ambient temperature (25 ± 3°C).



Image from Plant Health Progress article:
Detection and Identification of Botrytis Species Associated with Neck Rot, Scape Blight, and Umbel Blight of Onion