November 20, 2010
November 20, 2010
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I have a number of Azalea plants in pots that I’ve had for about 11 years. I keep them under shade cloth in the summer in an easterly direction and in the winter I put them in a round garden on my front lawn. They love it there and they always flower beautifully. I live in the central wheatbelt of Western Australia and our summers are very hot and winters are cold and frosty. This does not seem to worry them at all, but this year they have what appears to be a white to grey appearance on the outside of the leaf and on the under side little black spotted things. Please can you help, as I said the summer doesn’t worry them as long as they are under the shade cloth, and of course, kept watered and the cold frosty mornings when we have them in winter doesn’t bother them.
The problem could be attributed to the azalea lace bug. Here is an article that you may find helpful: https://www.gardeningknowhow.com/ornamental/shrubs/azalea/azalea-lace-bug.htm
It sounds like either a nutrient deficiency or a drainage problem. Have your soil tested, then amend the soil accordingly and make sure that the plants are not in standing water
I am on Wadmalaw Island SC. I have about 30 well established large azaleas and about 20 small “suzikis” (sp) About two years ago some of both varieties started getting yellow leaves and then dying branch by branch. I saw no obvious pests, and cut out the branches. The bush died anyway. The problem has slowly spread bush by bush from the first area. Any suggestions?
Unfortunately, I suspect that it may be Phytophthora Root Rot. This article will have more information:
This article has recipes for homemade sprays:
I like neem oil myself. You have to buy it, but it is organic, safe for people, pets and good bugs and very effective. Here is more information:
We had a hard frost and I now have some rotten lemons. I vaguely remember hearing something about using lemon peels as a fertilizer for something – maybe azaleas? Could I use these whole lemons in some way? I live in Sacramento, CA where winter can have freezes but the temps are usually 40-50s. Summers are dry with 90-100s for a couple months. Any suggestions would be great. I can just add them to the compost, but have lots of azaleas and would love using them as fertilizer for them if that were possible.
Azaleas love acid, and lemons are high in acid, so they would make good fertilizer. I would not put the lemons on the ground as is though, as this could attract vermin and possibly burn the soil. Instead, I would compost them first before applying them to the azaleas.