← Diseases

Break Viruses

Little Cherry Virus-1 and Little Cherry Virus-2

3 host plants

Last updated

Data Coverage 3 of 6 dimensions
Causal Agent
Host Plants
Symptoms
Management
GDD Threshold
Regional Notes

Break viruses refer to virus-induced decline diseases of cherry causing severe fruit size reduction, altered coloration, poor flavor, and vigor loss. Little cherry disease significantly impacts cherry production, rendering fruit unmarketable. You'll see small, light-colored, poor-tasting fruit on infected trees. Spread by grafting infected wood and mealybug vectors. Purchase virus-tested planting material.

There is no cure for viral diseases. Remove and destroy infected plants to prevent spread to healthy ones nearby. Many viruses spread through insect vectors like aphids and leafhoppers, so managing those populations helps slow transmission. When replacing removed plants, choose virus-resistant varieties if available and purchase certified virus-free stock from reputable nurseries.

Quick Reference

Causal Agent
Little Cherry Virus-1 and Little Cherry Virus-2
Host Plants
3
Favorable Conditions
Presence of susceptible host varieties; mealybug vector presence; grafting of...

Management

What Triggers Infection

Presence of susceptible host varieties; mealybug vector presence; grafting of infected wood; tree stress may increase symptom expression

Cultural Controls

  • Remove and destroy affected plants (including all daughter bulbs).
  • Purchase and plant virus-tested (found to be free of known viruses) material.

Host Plants (3)