Grey mould
Botrytis cinerea · Podridão cinzenta
What you see
Fuzzy grey mould on fruit, flowers and soft growth; strawberries collapse into grey fur; spreads by touch.
Conditions
Cool, damp, still air - crowded strawberry beds after rain, unventilated corners.
Treatment
Remove and bin every infected fruit and stem promptly (it spreads from them); improve airflow immediately.
Prevention
Straw mulch under strawberries; pick ripe fruit daily in damp spells; space and ventilate; never leave rotting fruit.
Months: not recorded
The thing people get wrong
Not recorded — the field is blank rather than guessed.