White Powder on Soil Around Lime Tree

We bought a lime tree and a lemon tree about a month ago. The lemon tree is growing and thriving, but the lime tree doesn’t seem to be growing at all. And there is a white powdery substance around the tree on the soil. What could this be? I’m afraid that it might be killing our tree. We have it planted in a pot that is approximately 18 inches in diameter. We could really use some tips.

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1 Comment To "White Powder on Soil Around Lime Tree"

#1 Comment By Nikki On 04/18/2011 @ 9:38 am

The powdery substance could be mildew or some sort of mold or fungus attributed to overwatering. However, it could also be due to salt deposits. Allow the plants to dry out some and try scraping the substance away with a spoon.

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