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Monday, October 5, 2026 at 6:30 AM

Sooty mold is a sign of an insect problem

Sooty mold is a sign of an insect problem
Sooty mold grows on a crape myrtle. (LSU AgCenter file photo)

Get it growing

As summer wears on, it’s not uncommon to spy a crape myrtle in the Louisiana landscape whose bark — and maybe even leaves — appears to have grown a powdery, black crust.

Usually, this is not a disease. It’s more likely to be something called sooty mold.

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