what disease could my gardenia tree have?

I bought a gardenia tree this spring and planted it in a large container outside. I recently brought it into the house for the winter. I have noticed a web like material on the leaves and tree trunk. I sprayed it with an organic peppermint oil and cleaned all leaves and trunk. I removed some leaves with some whitish stuff on top and some brownish on the bottom. The web like material is coming back on the new growth. Can you help?

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1 Comment To "what disease could my gardenia tree have?"

#1 Comment By Heather On 12/05/2013 @ 2:24 pm

These are spider mites. Their presence indicates that the plant is stressed. This article will help deal with them:
https://www.gardeningknowhow.com/plant-problems/pests/spider-mite-detection-and-spider-mite-natural-control.htm ^[1]

That being said, as I mentioned, they are an indication of a larger problem. Most commonly with gardenias brought indoors the problem is too little humidity. You may want to look into setting up a pebble tray for the plant. More information on this:
https://www.gardeningknowhow.com/houseplants/hpgen/raise-humidity-for-houseplants.htm ^[2]

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[1] https://www.gardeningknowhow.com/plant-problems/pests/spider-mite-detection-and-spider-mite-natural-control.htm: https://www.gardeningknowhow.com/plant-problems/pests/spider-mite-detection-and-spider-mite-natural-control.htm

[2] https://www.gardeningknowhow.com/houseplants/hpgen/raise-humidity-for-houseplants.htm: https://www.gardeningknowhow.com/houseplants/hpgen/raise-humidity-for-houseplants.htm

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