Orchid Pest and Disease Directory Summary, Common Types at a Glance

OrchidThere are 48 diseases in total, including 32 fungal diseases, 3 bacterial diseases, 5 nematode diseases, 6 viral diseases, and 1 phytoplasma disease. OrchidFungal Diseases 1.OrchidAnthracnose Pathogen: Colletotrichum gloeosporioides Penz. 2. Dendrobium Leaf Spot Pathogen: Pseudocercospora dendrobii Goh & Hsieh 3. Orchid Black Spot Pathogen: Cylindrosporium phalaenopsidis Sawada 4. Orchid Southern Blight Pathogen: Sclerotium rolfsii Sacc 5. Orchid Leaf Blight Pathogen: Cylindrosporium padi Karst. 6. Orchid Crown Rot Pathogen: Phytophthora palmivora Butler. 7. Orchid Flower Rot Pathogen: Botrytis cinerea Pers. ex Fr. 8. Orchid Round Spot Pathogen: Stagonospora curtisii (Berk.) 9. Orchid Leaf Sclerotinia Rot Pathogen: Ectostroma sp. 10. Orchid Rust Pathogen: 1. Uredo behnickiana P. Henn 2. Uredo guacae Mayor. 3. Sphenospora mera Cumm. 4. Sphenospora saphena Cumm. 5. Uredo epidendrum P. Henn. 6. Uredo negropunctata P. Henn 7. Uredo oncidii P. Henn 11. Cercospora Leaf Spot Pathogen: 1. Cercospora epipactidis C. Massalonga 2. Cercospora dendrobii Burnett 3. Cercospora angraeci Feuilleaubois and Roumeguere 4. Cercospora cypripedii Ellis and Dearness 5. Cercospora odontoglossi Perlllieux and Delacrois 12. OrchidOtherFungal Diseases 1. Leaf Spot caused by Septoria fungi Pathogen: Septoria selenophomoides Cash and Watson 2. Leaf Spot caused by Phyllostictina fungi Pathogen: Phyllostictina pyriformis Cash and Watson 3. Leaf Spot caused by Diplodia fungi Pathogen: Diplodia laeliocattleyae Sibilia 4. Orchid Fly-Speck Spot Pathogen: Merothyriella rubi Petr. 5. Orchid Sooty Mold Pathogen: Gloeodes pomigena (Schw.) Colby 6. Orchid Snow Mold Pathogen: Ptychogaster sp. 7. Vanilla Root Rot Pathogen: Fusarium batatatis var. vanilliae Tucker 8. Orchid Root Rot Pathogen: Rhizoctonia solani Kuehn Pellicularia filamentosa 9. Fusarium Wilt Pathogen: Fusarium oxysporum Schlecht. f. sp. cattleyae Foster 10. Curvularia Flower Blight Pathogen: Sclerotinia fucheliana 11. Phyllostictina Leaf Spot Pathogen: Phyllostictina citricarpa Orchid Bacterial Diseases 1. Orchid Soft Rot Pathogen:Soft RotErwinia carotovora (Jones) Holland 2. Orchid Brown Rot Pathogen: CypripediumSoft RotErwinia cypripedii (Hori) Bergey et al. 3. Orchid Brown Spot Pathogen: Pseudomonas cattleyae (Pavarino) Savulescu Orchid Nematode Diseases Pathogen: 1. Yellow Bud Nematode Aphelenchoides ritzemabosi (Schwartz) Steiner and Buhrer 2. Rice White-Tip Nematode Aphelenchoides besseyi Christie 3. Mushroom Nematode A. composticola Franklin 4. A. aligarhiensis Siddiqi 5. Root-Knot Nematode Orchid Viral Diseases 1.CymbidiumMosaic Disease Pathogen:CymbidiumMosaic Virus (CyMV) 2. Orchid Ringspot Disease Pathogen: Tobacco Mosaic Virus Orchid Strain (i.e. Odontoglossum Ringspot Virus) ORSV Epidendrum Leaf Spot Virus 3.CymbidiumMild Mosaic Disease Pathogen: Cymbidium Mild Mosaic Virus (CyMMV) 4. Cymbidium Ringspot Disease Pathogen: Cymbidium Ringspot Virus CyRV 5. Orchid Spot Disease Pathogen: Orchid Fleck Virus (OrFV) 6. Dendrobium Mosaic Disease Pathogen: Dendrobium Mosaic Virus (DeMV) Orchid Witches' Broom Disease Pathogen: Phytoplasma MLO (Liu Zhongjian)