CTV_healthy_sympotmatic
Stem pitting of citrus (on the lower stem, a viral disease caused by CTV, Citrus Tristeza Virus). The upper stem is not infected and is asymptomatic (no pitting). One must peel away the epidermis and outer layers from the stem to see this symptom.
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Uploaded on June 13, 2011
Taken on July 16, 2008