Figure 4
From: Fungicidal properties of ginger (Zingiber officinale) essential oils against Phytophthora colocasiae
Typical Symptoms of taro leaf blight and fungal Morphology of Phytophthora colocasiae. (A) Leaf blight lesions showing silvery rings of sporangia, (B) Symptoms on leaf petioles, (C) Cross-section of corm showing decaying symptoms, (D) Typical symptoms, lesion showing plant sap exudates, (E) Colony morphology of P colocasiae, (F) Sporangia with mycelium and zoospores, (G) sporangia releasing zoospores, (H) Zoospores magnified under compound microscope.
