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- Q.Azaleas - I have azalea plants in which the leaves have become brown and black and sort of bubbled up and curled. ...
- Q.Salvaging Azaleas With Rust - Last year my four azaleas got what I think is rust. I treated them with a fungicide, but I didn't know ...
- Q.Identify Azalea Disease - I have noted a light bluish-green, algae-type deposit on the branches of my very mature azaleas in southern New Jersey. ...
- Q.Azaleas Leaves Turning Purple On Ends - Leaves changing to purple and drying out, then branch dying. They have plenty of water.
- Q.Stunted Azalea - We have a four-year-old azalea planted on the east side of our house. The plant is stunted with few blooms ...
- Q.Mossy Fungus And Spots Under Leaves - What can I use to treat mossy fungus on azaleas and spots under the leaves of camellias?
- Q.Green Mold On Azalea Plant - Since the snow went off this year, I have a green mold growing on my plants. This never happened before. ...
Asked by
Anonymous on
March 2, 2011Q.Azaleas
I have azalea plants in which the leaves have become brown and black and sort of bubbled up and curled. I believe they are putting out a black mold that is turning our brick work and wood work (fence) black, and rotting the wood as well. The black is also on the concrete patio ground. Are you familiar with any of this? If so, any suggestions?
Answered by
Nikki on
March 2, 2011
Certified ExpertA.It sounds like the tree has sooty mold, which is actually an indicator of a pest infestation. Many times the pests that cause sooty mold are too small to see, but they can be damaging. I would recommend treating the plants with neem oil. This will treat both the pests and the sooty mold. Here is more information that may help:
https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htmWas this answer useful?00
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- Asked by
Anonymous on
March 8, 2011Q.Salvaging Azaleas With Rust
Last year my four azaleas got what I think is rust. I treated them with a fungicide, but I didn't know they had the problem until they were almost completely covered. Can azaleas be pruned down to the ground before the season begins this year and save them? Will I just need to dig them up and start over? If so, how do I need to treat the soil before planting anything again?
- Answered by
Nikki on
March 8, 2011
Certified ExpertA.I would recommend treating them with fungicide frequently at the beginning of the year, including the soil around the plants. Also, prune some of the interior branches out so that the plant has better air circulation. It has been a rather cold winter, so you have a good chance that the rust fungus has been killed back somewhat to a manageable level.
Was this answer useful?00 - Asked by
Anonymous on
March 8, 2011Q.Identify Azalea Disease
I have noted a light bluish-green, algae-type deposit on the branches of my very mature azaleas in southern New Jersey. I planted these over 30 years ago and do not want to lose these specimens.
- Answered by
Nikki on
March 9, 2011
Certified ExpertA.It actually sounds like they have developed a lichen, which is not harmful to the plants. This article will explain more about them:
https://www.gardeningknowhow.com/ornamental/fungus-lichen/treatment-tree-lichen.htmWas this answer useful?00 - Asked by
tess on
March 9, 2011Q.Azaleas Leaves Turning Purple on Ends
Leaves changing to purple and drying out, then branch dying. They have plenty of water.
- Answered by
Heather on
March 10, 2011
Certified ExpertA.Unfortunately, it may be Phytophthora root rot. This article will have more information that can help you confirm it: https://www.gardeningknowhow.com/ornamental/shrubs/azalea/phytophthora-root-rot-azaleas.htm
Was this answer useful?00 - Asked by
Anonymous on
March 10, 2011Q.Stunted Azalea
We have a four-year-old azalea planted on the east side of our house. The plant is stunted with few blooms each spring. What seems to be the problem?
- Answered by
Nikki on
March 10, 2011
Certified ExpertA.It sounds like it has a nutritional imbalance of some kind. There are several nutrient deficencies that can cause this, but the most likely is phosphorus. Add a phosphorus rich fertilizer and have the soil tested for other deficiencies.
Was this answer useful?00 - Asked by
Anonymous on
March 11, 2011Q.Mossy Fungus and Spots Under Leaves
What can I use to treat mossy fungus on azaleas and spots under the leaves of camellias?
- Answered by
Nikki on
March 14, 2011
Certified ExpertA.The fungus you see on the azalea is probably lichen. It is not harmful to the plant but if you want to be rid of it, this article will help:
https://www.gardeningknowhow.com/ornamental/fungus-lichen/treatment-tree-lichen.htmAs for the spots on the camellias...Can you describe them a bit more, in terms of color and shape? There are several things it could be and I want to make sure we give you the right advice.
Was this answer useful?00 - Asked by
Anonymous on
March 12, 2011Q.Green Mold on Azalea Plant
Since the snow went off this year, I have a green mold growing on my plants. This never happened before. What can or should I do?
- Answered by
Nikki on
March 14, 2011
Certified ExpertA.The fungus you see on the azalea is lichen. It is not harmful to the plant but if you want to be rid of it, this article will help:
https://www.gardeningknowhow.com/ornamental/fungus-lichen/treatment-tree-lichen.htmWas this answer useful?00
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