Common crops affected
What is it?
These wilts are caused by Verticillium and Fusarium fungi that enter through the roots and colonize the plant's vascular (water-conducting) system, blocking water flow. They survive in soil and debris for years and are favored by stress and monoculture. Once a plant is systemically infected, it cannot be cured — which is why prevention is central.
How to identify it
- Yellowing and wilting, often starting on one side of the plant or one branch
- Wilting that does not recover after watering
- Brown discoloration in the vascular tissue when a stem is cut lengthwise
- Progressive decline and stunting, worse in warm conditions (Fusarium) or cool (Verticillium)
Damage and how it spreads
By blocking water transport, these wilts stunt and kill plants and can make ground unusable for susceptible crops for years because the fungi persist in soil. Since infected plants cannot be cured, the practical goals are to avoid introducing the pathogens, reduce their build-up, and keep plants vigorous enough to tolerate pressure.
How to control it
- Use resistant varieties and clean, certified transplants and seed.
- Rotate with non-host crops and avoid moving infested soil.
- Remove and destroy infected plants and debris; do not compost.
- Build suppressive soil biology and keep plants unstressed and well-rooted.
Recommended Vegalab solution: Spore Control
Vegalab Spore Control (Thymol) lists wilt diseases among its targets and supports a broader management program, though systemic soil-borne wilts cannot be cured once a plant is infected. The most effective approach combines resistant varieties, rotation, and sanitation with strong soil and root health: Charge Bioboost supports suppressive soil biology, Balance Boost aids soil remediation and balance, and Root Boost builds vigorous roots that better tolerate pressure.
| Role | Product | Use |
|---|---|---|
| Primary control | Spore Control | Broad-spectrum protective fungicide |
| Companion / broader pressure | Charge Bioboost | Soil biology / suppressive soil |
| Plant support | Balance Boost | Soil remediation & balancing |
Preventing it next season
Choose resistant varieties, rotate, sanitize, and avoid spreading infested soil — and invest in soil health. Charge Bioboost and Balance Boost help build resilient, suppressive soil over time.
Claims and product availability vary by jurisdiction. Always read and follow the product label.

