curling leaves on a burning bush.

Asked June 3, 2016, 9:20 AM EDT

We have 4 dwarf burning bush shrubs planted along a concrete patio and all the new leaves are beginning to curl but have not changed color. This only occurs on the tips and doesn't seem to be affected by the amount of water they have availabl. Any thoughts?

Lycoming County Pennsylvania

1 Response

Leaf curl can be caused by a fungus that appears as a tiny spot on the infected leaves. It can be insect damage. There can also be environmental problems. I recommend you take a sample to your local Penn State extension for diagnosis. Also, pick up a soil test to see if your pH is too alkaline. It's a matter of eliminating possible causes until you arrive at the solution.