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- Q.Azalea Caterpillars - Is there another way to rid my azaleas of caterpillars besides hand picking them off?
- Q.Azalea With Dull Green Stuff On Branches - My azalea plants have a dull green stuff on the branches and it seems to be spreading. It looks like ...
- Q.Azalea Disease - My azalea plants have rust green stuff on the stems. What is it and how do I treat it? It ...
- Q.Treatment Of Lichen On Azaleas - A commercial grower 'gave' me about 100 azaleas that have been through Katrina and an 8-inch snow in the past ...
- Q.Azalea Black Branches - I have two azaleas (about 15 years old) in my front yard and one appears nearly dead. I noticed all ...
- Q.Azalea - Some of our azaleas have black on some tops and bottom leaves with little white small aphids or mites. What ...
- Q.New Leaves On Azaleas, Limey Green With Dark Veins - Could you please advise why the new growth on my Azaleas is light limey green with darker veins? The plants ...
Asked by
Anonymous on
August 23, 2011Q.Azalea Caterpillars
Is there another way to rid my azaleas of caterpillars besides hand picking them off?
Answered by
Nikki on
August 24, 2011
Certified ExpertA.Azalea caterpillar control in the larvae stage is relatively easy. However, because the caterpillars feed in groups, they often completely defoliate a portion of a plant before they are discovered. Once the caterpillars are in the adult stage, they can be hand picked and destroyed easily. This is the ideal situation if you have a limited number of azaleas. Most azalea caterpillars can be shaken from the shrub and dumped into soapy water to kill.
Neem-oil is an organic control that must be applied frequently. A second option is to apply Bacillus thuringiensis or Bt. Bt is a bacterial pathogen widely used as a biological control of pest larvae. It is safe to humans, other animals, and plants when applied according to label instructions.
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- Asked by
Anonymous on
August 24, 2011Q.Azalea With Dull Green Stuff on Branches
My azalea plants have a dull green stuff on the branches and it seems to be spreading. It looks like rust on copper pipes. What is it and how do I get rid of it? What should I do?
- Answered by
Nikki on
August 24, 2011
Certified ExpertA.What you are seeing 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 - Asked by
Anonymous on
August 28, 2011Q.Azalea Disease
My azalea plants have rust green stuff on the stems. What is it and how do I treat it? It looks like rust on copper pipes.
- Answered by
Nikki on
August 29, 2011
Certified ExpertA.This article will help you with your rust problem: https://www.gardeningknowhow.com/plant-problems/disease/learn-about-plant-rust-disease-and-rust-treatment.htm
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Anonymous on
September 6, 2011Q.Treatment of Lichen on Azaleas
A commercial grower 'gave' me about 100 azaleas that have been through Katrina and an 8-inch snow in the past five years. He was planning to destroy them. I have planted them and have kept them alive this entire very dry summer; however, most all are covered with lichen on their bark. I tried a solution of copper sulfate once but may not have had the solution strong enough. Now it looks like there is something attacking the leaves. They are bleaching out and have lots of white on them. I can see very small black things on the bottom of the leaves, but not all bleached leaves have them.
- Answered by
Nikki on
September 7, 2011
Certified ExpertA.The pest is azalea lace bugs. The lichen tends to grow on stressed plants and the lace bug is causing the stress. If you get rid of the lace bug, that should make it easier to treat the lichen. These articles will help you:
https://www.gardeningknowhow.com/ornamental/shrubs/azalea/azalea-lace-bug.htm
https://www.gardeningknowhow.com/ornamental/fungus-lichen/treatment-tree-lichen.htmWas this answer useful?00 - Asked by
Anonymous on
September 6, 2011Q.Azalea Black Branches
I have two azaleas (about 15 years old) in my front yard and one appears nearly dead. I noticed all the branches are black with some whitish mold, but mostly really dark. The leaves have dried out and are falling. One is just beginning to turn black and the bottom half looks wilted. Is there time to save the second one? Should I dig up and re-soil where the other one was? There is a healthy rhododendron and hydrangea on either side of the azaleas. No other changes.
- Answered by
Nikki on
September 7, 2011
Certified ExpertA.Is the mold only white, or is it black too? If it is black, it may be sooty mold. This article can help you understand that fungus and see if that is what you have: https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm
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Anonymous on
September 28, 2011Q.Azalea
Some of our azaleas have black on some tops and bottom leaves with little white small aphids or mites. What is the problem and how do I get rid of it?
- Answered by
Nikki on
September 29, 2011
Certified ExpertA.You probably have a combination problem of aphids and sooty mold. Aphids commonly cause sooty mold. Here is information on treating both problems:
https://www.gardeningknowhow.com/plant-problems/pests/homemade-aphid-control-a-natural-way-to-kill-aphids.htm
https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htmWas this answer useful?00 - Asked by
Anonymous on
October 11, 2011Q.New Leaves on Azaleas, Limey Green With Dark Veins
Could you please advise why the new growth on my Azaleas is light limey green with darker veins? The plants were moved in April from my mums to our new home. They have all flowered lovely since moved but the new spring growth looks sick. They are in the shade for the mornings and get the sun from about midday. Have given them a little bit of Azalea food but no change.
- Answered by
Nikki on
October 11, 2011
Certified ExpertA.It sounds like it is chlorosis. It is frequently caused by a lack of iron. This article will help: https://www.gardeningknowhow.com/plant-problems/environmental/plant-leaves-turn-yellow.htm
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