TeddyGreenFingersAllium rust
Puccinia allii · Ferrugem do alho
What you see
Bright orange powdery pustules along leaves of garlic, leeks and onions.
Conditions
Humid spring weather on crowded, nitrogen-rich plantings.
Treatment
No cure - but the crop is still edible. Harvest early if it spreads fast.
Prevention
Wide spacing, less nitrogen, 4-year allium rotation, never leave infected debris.
Months: not recorded
The thing people get wrong
Not recorded — the field is blank rather than guessed.