Overview
Gray mold is a fungal disease affecting many garden plants
It is caused by Botrytis cinerea
It appears as fuzzy gray growth on plant tissues
Common Signs
Gray, fuzzy mold on leaves, flowers, or fruit
Soft, brown or water-soaked spots
Flowers may wilt, brown, or collapse
Fruit may rot and become covered in gray mold
Often Confused With
Powdery mildew
→ white coating, dry-looking
Leaf spot
→ flat spots, no fuzzy growth
Gray mold produces fuzzy, gray decay on soft plant tissue
Plants Commonly Affected
Strawberries
Tomatoes
Grapes
Roses
Many flowers and vegetables
Occurrence
Most common in cool, damp conditions
Thrives in high humidity and poor airflow
Spreads via spores in air, water, or plant debris
Fast Control (Start Here)
Remove infected plant material immediately
Improve airflow
Keep foliage dry
Reduce humidity around plants
Which Treatment Should You Use?
For early signs
→ Remove infected areas
→ Increase airflow and reduce moisture
For spreading infection
→ Remove heavily affected parts
→ Adjust watering practices
For severe cases
→ Remove entire plant if necessary
→ Clean surrounding debris
Fungicides may help prevent spread
They do not cure infected tissue
Instructions
Immediate Action
Cut off infected leaves, flowers, or fruit
Dispose in trash (not compost)
Clean tools after use
Environmental Control
Space plants properly for airflow
Avoid overhead watering
Water early so plants dry during the day
Remove dead plant material
Prevention
Keep garden clean and free of debris
Avoid overcrowding
Water at soil level
Harvest fruits before overripe
When to Remove Plants
Early stage
Remove infected sections
Severe infection
Remove plant to protect others
If You Pull Plants: Compost or Trash?
Dispose in trash
Do not compost infected material
Can You Plant Again in the Same Space?
Yes, with cleanup
Remove all debris
Improve airflow before replanting
Gardener’s Notes
Gray mold often starts on aging or damaged tissue
It spreads quickly in humid conditions
Early removal is critical
Key Takeaway
Watch for fuzzy gray growth
Act quickly
Keep plants dry and well-spaced
