Citrus yellow vein clearing virus (CYVCV) is an emerging disease of citrus that can cause serious damage to most citrus species and can dramatically diminish fruit marketability.
- CYVCV is transmitted by aphids including Aphis spiraecola Patch, Aphis craccivora Koch, and a whitefly Dialeurodes citri. All three of these insects are present and widespread in California. The most prominent mechanism for long-distance spread of CYVCV is caused by grafting infected budwood.
- Symptoms are variable depending on environmental and inherent conditions: leaves of young lemon and sour orange trees display a water-soaked appearance and yellow, clear veins on their front side, and wrinkled and warped leaves.
- Quarantine Map
Boundaries are in the Hacienda Heights area of Los Angeles County and the Tulare and Visalia areas of Tulare County.
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