Troubleshooting
Mignonette Alpine Strawberry problems — and how to fix them
Mignonette Alpine Strawberry (Fragaria vesca 'Mignonette') is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Botrytis grey mould on fruit
Common in cool, humid seasons. Remove infected berries immediately, improve spacing for airflow, and avoid wetting the fruit when watering.
Vine weevil larvae
Grubs eat roots from late summer onward, causing sudden wilting and plant collapse. Apply pathogenic nematodes (Steinernema kraussei) to moist soil in late August–September for biological control.
Bird damage to fruit
Birds target the aromatic fruits as they ripen. Drape fine mesh netting over plants once berries begin to colour, or grow in a fruit cage.
Prevent mignonette alpine strawberry problems before they start
Most mignonette alpine strawberry issues are care-mismatch, not bad luck. Dial in the basics:
Mignonette Alpine Strawberry problems — FAQ
Why is my mignonette alpine strawberry botrytis grey mould on fruit?
Common in cool, humid seasons. Remove infected berries immediately, improve spacing for airflow, and avoid wetting the fruit when watering.
Why is my mignonette alpine strawberry vine weevil larvae?
Grubs eat roots from late summer onward, causing sudden wilting and plant collapse. Apply pathogenic nematodes (Steinernema kraussei) to moist soil in late August–September for biological control.
Why is my mignonette alpine strawberry bird damage to fruit?
Birds target the aromatic fruits as they ripen. Drape fine mesh netting over plants once berries begin to colour, or grow in a fruit cage.