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This disease cannot attack healthy, undamaged bark.

Cherries have never been known to grow really well in the very sunny hot (and fairly dry) climate of Southern California. The leaves are not scorched, but it looks like your tree might be getting too much sun exposure and hot temperatures, and you are trying to counteract the wilting leaves.

There are actually several possible reasons why our Cherries are falling too early: Cross Pollination –. Some varieties of Cherry need a pollinator, others don’t.

Risk: Black knot can limit the production of cherries and ruin the appeal of ornamental cherry trees.

Make sure you know whether your tree is Watering Methods –. Once a Cherry gains good size it needs to be watered regularly. Aug 18, Symptoms of bacterial spot consist of water-soaked leaf spots with a brown to black color, leaf yellowing, numerous small holes on leaf surfaces and leaf drop. Infection can spread to the cherry fruit, causing dark brown spots and a sunken appearance.