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Pests
Leafhoppers on Grape Vines
Commonly affects: Vitis vinifera, V. labrusca (Grape)
Fine white-yellow stippling spreads across leaves, sometimes with small white insects visible flying up when the vine is disturbed.
Potential Causes
- 1Leafhopper feeding on leaf sap, causing stippled damage
- 2Warm weather supporting multiple generations per season
- 3Dense canopy providing shelter for nymphs and adults
Solution Steps
- 1Apply insecticidal soap to the underside of leaves where nymphs congregate
- 2Introduce or protect natural predators such as lacewings and parasitic wasps
- 3Remove excess canopy growth to reduce shelter for leafhoppers
- 4Monitor populations with yellow sticky traps
Prevention Tip
Leafhoppers rarely cause serious damage alone but can vector some grape diseases â keeping populations moderate through natural predators is usually sufficient.
