Common crops affected
Why it matters
Mealybugs foul grape bunches with honeydew and sooty mould and can vector grapevine viruses, downgrading table and wine fruit.
When it appears
On the exposed crawler stage; manage ants that protect colonies.
How to identify it
- White, cottony masses in leaf axils, on stems, and on or under fruit and bunches.
- Honeydew and black sooty mould on foliage and fruit.
- Stunting, yellowing, leaf drop and fruit contamination in heavy infestations.
How to manage it
- Apply Spider Mite Control with thorough coverage of bunches, leaf axils and stems;
- manage ants;
- repeat per pressure.
- Monitor early, treat at the right window above, and use cultural measures (sanitation, airflow/drainage or resistance/rotation as relevant).
Recommended Vegalab program
| Role | Product | Use |
|---|---|---|
| Primary control | Spore Control | Apply Spider Mite Control with thorough coverage of bunches, leaf axils and stems; |
Product claims, rates, and availability vary by jurisdiction; always follow the applicable label.