Rhododendron insigne · Shrub
Lime-induced chlorosis: Plant only in lime-free ericaceous compost or well-drained acidic soil beds.
Powdery mildew: Improve air circulation and apply a suitable fungicide if infection is severe.
Bud blast: Site plants in sheltered positions to protect against cold winds and frost damage.
Root rot (Phytophthora): Ensure excellent drainage and avoid waterlogging by using raised beds or containers.
Vine weevil: Use biological nematodes in soil or systemic insecticides for potted plants.