Grape Leafroll Disease
Grapevine leafroll-associated virus complex
Grapeviral
A mealybug-transmitted virus complex that delays ripening and discolors leaves between the veins.
Symptoms
Downward-rolling leaves that redden (red varieties) or yellow (white varieties) between green veins, with delayed fruit ripening.
Favorable conditions
- •Mealybug vector activity
- •Infected propagation material
Management
- 1Use certified virus-tested planting material
- 2Control mealybug vectors
- 3Rogue severely infected vines
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