UF/IFAS experts caution Florida citrus growers to watch for Yellow Vein Clearing Virus in their groves.
Yellow Vein Clearing Virus (CYVCV) has not been detected in Florida yet, according to a UF/IFAS Tip of the Week article, but it was detected in California in 2022. The article maintained that “it is important for growers to be familiar with the disease symptoms so they can stay vigilant about CYVCV’s threat to Florida should the virus be introduced.” The article shared symptoms, prevention, and control tips; see them below.
Details of Citrus Yellow Vein Clearing Virus
The article shared that “CYVCV is an RNA virus (like citrus tristeza virus) that infects systemically and causes vein clearing (yellow veins) on young citrus leaves, especially on lemon and sour orange. It is transmitted through grafting, work equipment and phloem-feeding insects such as aphids and whiteflies. Severe infections lead to tree decline and reduced fruit yield and quality.”
Symptoms:
“CYVCV symptoms can vary depending on numerous factors, such as the viral isolate, citrus variety and environmental conditions like temperature. The symptoms can be reduced or disappear after the leaves mature or in high temperatures. Some leaves are crinkled and warped, with wavy edges that persist.
The typical symptoms in lemon or sour orange trees are yellow, clear veins and a water-soaked appearance in leaves. Symptoms of CYVCV on satsuma include slightly curled spring leaves, cracked and deformed leaf edges and malformed young fruits with groovelike depressions around the calix that resemble a pumpkin.
CYVCV is spreading rapidly and without symptoms in most citrus cultivars, causing a considerable loss to the lemon industry in many countries.”
Prevention And Control:
“Climatic conditions are highly suited for establishing CYVCV, which is predicted to have an economic impact on citrus production in Florida if introduced. Preventing CYVCV from entering Florida is much easier than trying to eradicate or control it. Therefore, avoiding propagation materials from areas infected with the virus is essential.
CYVCV is mainly controlled by managing the insect vectors and disinfecting equipment. If you suspect CYVCV in your grove, contact the Florida Department of Agriculture and Consumer Services or your Extension specialist…”
Griffin Fertilizer is committed to helping both growers and ranchers make sound agronomic and economic decisions in order to maximize the health of their grove and pasture. As a full-service custom dry & liquid fertilizer blender and crop protection product distributor, we will continue our mission to further advance Florida agriculture. For questions -or concerns about your farm or pasture, contact us and one of our team will be in touch.