Virus Diseases


Yellow flecks appear on the edges of the leaf or leaf exhibits yellow variegation or mosaic. Plant is a black currant.

Black Currant Yellows


Black currant yellows on 'Barchardnaya' cultivated in Corvallis, Oregon


Black currant yellows on 'Kantata 50' cultivated in Corvallis, Oregon.

Black currant yellows

The cause of this condition is not known and may be a physiological disorder. Thus far, unlike viral diseases, this condition has not been demonstrated to be transmitted to other plants. The cause of this condition could be a genetic disorder. Symptoms include yellow regions of the leaf or yellow flecks appearing on the edges of the leaf. Symptoms are more pronounced in the spring, and are overgrown by normal green foliage in the summer.

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