Primula · Perennial
Primula rust: Remove and destroy infected leaves immediately to prevent spread; avoid fungicides to protect biodiversity.
Golden root mealybug: Inspect new plants thoroughly before planting and quarantine for several weeks to ensure they are pest-free.
Slugs and snails: Use physical barriers like copper tape or beer traps, and hand-pick pests at night.
Powdery mildew: Improve air circulation around plants and water at the base to keep foliage dry.
Root rot: Ensure well-draining soil and avoid overwatering, particularly in heavy clay soils.