The plant is yellowing, and pull out the root to find the white powdering thing... Anyone know what is this? how to prevent?
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Good question and good illustrations; could also be helpful if could include illustration of top of yellowing Tomato plant, watering amount & frequency, and if coarse gravel in bottom of container for good drainage & good aereation. Thank you. Welcome to the site! – M H Aug 10 '20 at 05:41