Signs and Symptoms
CymMV causes a mosaic of irregularly shaped chlorotic and/or necrotic lesions to appear on infected hosts. Additionally, infected plants will show smaller yields. Sometimes the orchids may display chlorotic rings while others will display symptoms in lesions. Sunken patches can also be observed on leaves. Lastly, certain infected plants may be symptom-less but are still viral enough to infect other neighboring plants. This is because the chlorosis and necrosis can take time to show; however, the virus can still be present on a leaf that does not display such obvious symptoms of the disease. The virus is still able to be transmitted from the plant despite its "healthy" appearance. The virus can be detected with ELISA, immunodiffusion tests, or a nucleic acid hybridization assay.
Read more about this topic: Cymbidium Mosaic Virus
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