problem with rhododendron - Knowledgebase Question

mountain lakes, Ne
Question by evamarkus2
April 28, 2010
leaves are turning brown and some green leaves are dotted with little holes. how do I revive these plants and make them healthy aagain

Answer from NGA
April 28, 2010


Rhododendrons are susceptible to various diseases and can be damaged by winter weather. Leaf drying and browning can occur as a result of winter exposure and the small holes you see may be associated with a fungal disease. If this is the case, the leaves may turn reddish brown and remain attached to the plant. To manage this disease, cut out the affected branches a few inches below the affected area and then destroy the branches. You can then spray with a basic copper sulfate fungicide after blooming. Repeat 2 or more times at intervals of 14 days. Best wishes with your rhodie.

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