Leafroll Virus

/LEEF-rohl VY-rus/
🍇Viticulture

Vine disease causing reduced ripening and quality.

Full Definition

Leafroll virus is a widespread grapevine disease spread by mealybugs and infected propagation material. It reduces photosynthesis, delays ripening, decreases sugar accumulation, and affects color development. Infected vines produce lower quality grapes. No cure exists; prevention involves clean plant material and pest control.

Related Terms

vine diseasemealybugvirus

See Also

viticulturequality
Late HarvestBack to GlossaryLean

More terms starting with L

Lactic Acid

The softer acid produced during malolactic fermentation.

Late Harvest

Wine from grapes picked after normal harvest for extra ripeness.

Lees

Dead yeast cells and grape solids that settle after fermentation.

Left Bank

The Cabernet-dominant side of Bordeaux.

Legs

The droplets that run down the glass after swirling.

Length

How long flavors persist after swallowing.