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Does anyone know what this white stuff is on my velvet calathea? | Pests, diseases and problems | Plantaコミュニティ

Nora

Does anyone know what this white stuff is on my velvet calathea?

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  1. kena

    powdery mildew! it may be overwatered/too dark. i use Natria brand neem oil against fungus/pests. consider moving it to a brighter spot/waiting a couple more days between watering to make sure it doesn’t come back.

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    • Nora

      ohh okay thank you!

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  2. Planty28

    It doesnt look like powdery mildew, it looks like mineral build up from water that had fertilizer in it. Use a warm cloth and wipe away. If it’s powdery mildew you’ll be able to feel it and will wipe away with touch

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