fungi-parasites on plants

antibiotic bunts cell colony conidia diagram disease draft education ergot fungi fungus haustoria herbal hypha hyphae illustration infection infestans leaf micro mildew mildews mushroom mycelia mycelium nature organism parasite parasitic parasitize parts pathogens phytophthora plant polypore powdery pythium rot rusts saprophyte scab schema science smuts sporangium spore spores structure tongue toxin tree trunk vector