Viola riviniana · Perennial
Slugs and snails: Use physical barriers like copper tape or apply iron phosphate pellets to control populations.
Powdery mildew: Improve air circulation and spray with a fungicide containing myclobutanil if severe.
Violet gall midge: Remove and destroy affected leaves immediately to prevent larvae from pupating in the soil.
Pansy leaf spot: Avoid overhead watering and remove infected foliage to reduce fungal spread.
Glasshouse red spider mite: Increase humidity around the plant and treat with a suitable miticide if infestation persists.