tobravirus |
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navigate by keyword : affected agriculture bacterial biology care chlorosis close closeup complex cultivated diagnostic different discoloration disease diseased environment farm farming field foliage hosts infected infection leaf leaves microbe microbiology morphology mosaic mottling pathogen pattern peony phytopathology plant rattle ring ringspots science severity sick spot spots symptom symptoms tobacco tobravirus trv varies vary viral virology virus year yellow yellowgreen |
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Close up of a leaf affected by peony tobacco rattle virus or ringspots Tobravirus TRV. The yellow mottling varies in severity from year to year. |
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