Crepe Myrtle - Knowledgebase Question

St. Louis, Mi
Question by crckt01
August 21, 2009
What is the white powdery stuff on the buds of my crepe myrtle? It doesn't seem to really harm it, but it just looks icky!

Answer from NGA
August 21, 2009


What you describe sounds like a fungal disease called powdery mildew. To reduce additional infections, avoid overhead watering to help reduce the relative humidity. An application of a fungicide may be necessary. These include: sulfur, neem oil (Rose Defense, Shield-All, Triact), triforine (Ortho Funginex), or potassium bicarbonate (Kaligreen, First Step). Be sure to apply according to label directions. Good luck with your crepe myrtle!

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