Grey Mold on Strawberries — Botrytis Fruit Rot
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GardenSays
Best match: Grey mould (Botrytis). Manageable if you act.
- Best match
- Grey mould
- Severity
- Treatable
- Causes checked
- 1
Based on fuzzy grey mold on fruit or dying leaves/flowers on the lower leaves with moist soil, the closest match is grey mould (botrytis). Confirm it against the actual plant: Fuzzy grey fungal growth on ripening berries or on dead/dying flowers and leaves — most noticeable right as fruit sugar content rises and it starts to ripen.
- This is a symptom-pattern match from your written description, not a lab diagnosis. If the plant is collapsing over days (not weeks), treat it as the worst plausible cause until ruled out.
Do this this week
- 1.Confirm it first: Fuzzy grey fungal growth on ripening berries or on dead/dying flowers and leaves — most noticeable right as fruit sugar content rises and it starts to ripen.
- 2.Remove and dispose of affected fruit, flowers and leaves promptly — don't compost. Water in the morning, avoid wetting the crown, and improve airflow between plants. No fungicide is approved for home gardeners.
- 3.Collapsing fast (days, not weeks)? Photograph it and check with your county extension before treating
Calculated result · 1 verified source · Checked 2026-07-17 · How we decide
Why
What to do: Remove and dispose of affected fruit, flowers and leaves promptly — don't compost. Water in the morning, avoid wetting the crown, and improve airflow between plants. No fungicide is approved for home gardeners.
- A symptom tree ranks causes by how well your conditions match each cause's known pattern — the distinguishing signs are how you confirm it on the actual plant, not a lab result.
- Most leaf problems trace to water, weather, or common leaf-spot fungi; true plant-killers are rarer but worth ruling out first.
When this doesn't apply
- If the plant is collapsing fast (days, not weeks), treat it as the most severe possibility on the list until proven otherwise.
- Multiple symptoms at once usually means the top cause here plus plain stress — fix watering first, then re-check.
How this was calculated
- 1. SymptomSource guidance
Strawberry: fuzzy grey mold on fruit or dying leaves/flowers — 1 known cause evaluated (extension-sourced)
- 2. Your conditionsCalculated result
Location on plant: lower; soil: moist. Causes whose known pattern matches these conditions rank higher — this narrows the list, it doesn't identify anything.
- 3. 1. Grey mould (Botrytis)match score 3Calculated result
Distinguishing signs: Fuzzy grey fungal growth on ripening berries or on dead/dying flowers and leaves — most noticeable right as fruit sugar content rises and it starts to ripen.
Data sources
- Royal Horticultural Society — Grey mould — Grey mould (Botrytis cinerea) infects plants under stress or through a wound, and infects healthy plants too, especially in humid conditions. Very noticeable on strawberries as fruit ripens and sugar content rises. No fungicides are approved for use against grey mould by gardeners; hygiene (removing dead/dying material promptly) is the main control. (checked 2026-07-17)
What changes this answer
Where on the plant?
Soil right now
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