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Gardening Know How Questions & Answers - https://questions.gardeningknowhow.comMy indoor gardenia has recently acquired some powdery “stuff” on the stems of newer leaves. Is this something I should be concerned about? The substance is similar to dust.
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[1] https://www.gardeningknowhow.com/ornamental/flowers/gardenia/gardenia-pests.htm: https://www.gardeningknowhow.com/ornamental/flowers/gardenia/gardenia-pests.htm
[2] https://www.gardeningknowhow.com/plant-problems/disease/get-the-cure-for-powdery-mildew.htm: https://www.gardeningknowhow.com/plant-problems/disease/get-the-cure-for-powdery-mildew.htm
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2 Comments To "Powdery Substance"
#1 Comment By AnnsGreeneHaus On 03/25/2013 @ 9:35 am
Could it be pollen from blooms? Could it be mealybugs? A more detailed description would help. This link might answer questions for you: https://www.gardeningknowhow.com/ornamental/flowers/gardenia/gardenia-pests.htm [1]
#2 Comment By Nikki On 03/27/2013 @ 7:40 am
This is powdery mildew, which is caused by a fungus. Oftentimes, neem oil can help. Here is more information: https://www.gardeningknowhow.com/plant-problems/disease/get-the-cure-for-powdery-mildew.htm [2]