In areas where this disease has been a problem, select Camellia sasanqua cultivars for planting or request C. japonica cultivars grafted onto a sasanqua rootstock. Purchase healthy plants that show no signs of wilting or yellowing of the leaves. The fungus thrives in areas with poor drainage and warm soils. Always choose locations that have good drainage for planting. The drainage of existing areas can be improved by using raised beds.
Fungicides can be effective on a preventative basis only, and repeat applications are required.
Fungicides containing mefenoxam can be applied in the home landscape, but will not cure an infected plant. Apply all chemicals according to directions on the label. It is caused by the fungus Exobasidium camelliae . Leaf galls are most often observed during the spring flush of growth. New shoots and leaves become enlarged, thickened and fleshy, and appear abnormal.