Eastern Grape Leafhopper on Grapes
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Eastern grape leafhopper (Erythroneura comes) is a tiny leafhopper, about 1⁄6 inch in size with light-colored wings that have orange markings. It is common in midsummer and feeds on leaves with piercing sucking mouthparts, sometimes causing small, lightcolored discolorations called stippling on foliage. Various other leafhopper species are also common in vineyards. Leafhoppers are known to transmit the pathogen that causes Pierce’s disease of grapes, although the disease is uncommon in Kentucky vineyards.
Eastern grape leafhopper.
(Photo: Ric Bessin, University of Kentucky)
Another leafhopper species that is common on grape.
(Photo: Ric Bessin, University of Kentucky)
Management:
- Monitor populations beginning in midsummer.
- Use insecticides to keep damage below 10%.
