They would probably also give some control of rhododendron leaf spots (provanto fungus fighter plus and toprose fungus control and protect mention 'leaf spot of ornamentals' on the label).
36+ Rhododendron Problems Brown Leaves. Symptoms are pale spots on upper leaf surface, with corresponding brown/grey patches underneath Rhododendron leaves begin to cup and curl at the edges when temperatures drop to below 35 ºf.
Rhododendron Leaf Problems from photos.demandstudios.com
Aside from browning leaves, the roots of infected plants are often described as mushy and dark in color. Here are 5 common hydrangea leaf problems: The leaves of the smaller azalea are usually pointed and narrow;
Plant in full sun to increase flowers and avoid mildew problems.
Why are my rhododendron leaves turning brown? The toxic principle interferes with normal skeletal muscle, cardiac muscle and nerve function. Department of agriculture plant hardiness zones 4. A second type of rhododendron issue is brown spots on the leaves.
