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#1
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Azalea Problem
Help!
Some of my azaleas have weird greenish-white things on the leaves -- the plants look as though garden gnomes came in & stuck popcorn on the leaves! These things are on the underside of a leaf, and there's a hole where something apparently chewed its way out, if that makes any sense. What should I do now? Should I spray the plants with pesticide? If these things were caterpillar chrysalises(?), the caterpillars are gone. So far, only my older azaleas seem to have this problem, but I'd obviously like for it not to spread to the dozens of newer azaleas I've planted in the last few years. Thanks, Anne Lurie |
#2
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Azalea Problem
To follow up on my own post: In case anyone else out there has a similar
problem, I've decided that the weird things are actually Azalea [Leaf] Galls. According to the sources I found, the plant is only affected aesthetically, and the treatment is to remove the galls (and dispose of them away from the affected plants). I understand that plants that are severely affected might benefit from fungicide, but I think I've caught it in time to avoid that. Apparently, the fungus was probably always around, but the combination of a wet spring & shaded area encourages the growth of the galls. (The plants with the worst problems are the ones that I rescued 4 years ago when they looked like dried sticks; oak leaves around them had not been raked up, so the leaves had formed an inpenetrable mat around the plants.) Anne Lurie NE Raleigh "Anne Lurie" wrote in message . com... Help! Some of my azaleas have weird greenish-white things on the leaves -- the plants look as though garden gnomes came in & stuck popcorn on the leaves! These things are on the underside of a leaf, and there's a hole where something apparently chewed its way out, if that makes any sense. What should I do now? Should I spray the plants with pesticide? If these things were caterpillar chrysalises(?), the caterpillars are gone. So far, only my older azaleas seem to have this problem, but I'd obviously like for it not to spread to the dozens of newer azaleas I've planted in the last few years. Thanks, Anne Lurie |
#3
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Azalea Problem
My azaleas have this condition also and this year is the worst ever, probably
because of the moisture. Some years, the condition disappears even though I never spray fungicides. Here's an explanation: http://www.ext.vt.edu/pubs/plantdise...5/450-605.html Anne Lurie wrote: Help! Some of my azaleas have weird greenish-white things on the leaves -- the plants look as though garden gnomes came in & stuck popcorn on the leaves! These things are on the underside of a leaf, and there's a hole where something apparently chewed its way out, if that makes any sense. What should I do now? Should I spray the plants with pesticide? If these things were caterpillar chrysalises(?), the caterpillars are gone. So far, only my older azaleas seem to have this problem, but I'd obviously like for it not to spread to the dozens of newer azaleas I've planted in the last few years. Thanks, Anne Lurie |
#4
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Azalea Problem
Thanks, Meg!
The Virginia Tech website added one very important bit of information that I did not see on the websites I checked: "Infected leaf tissue is usually pale green in color during the early stages of the disease; infected flowers are usually pinkish. Later in the season, a white spore layer covers the infected plant parts." I remember seeing "whitish stuff" on the stems of azaleas in the past, but I never realized what it meant. "Galls eventually turn brown and harden as the season progresses. Lower leaves on plants are usually the most seriously damaged, but under humid conditions and in shaded locations galls may occur at the ends of upper branches." I have a sneaking suspicion that if I checked the lower leaves of my larger azalea plants, I might see signs of damage; since I prune my azaleas sparingly and never get down on my hands & knees to do anything underneath them, they could have had the problem in the past, but I never noticed.......until this year, when the galls are at the ends of the top branches. I'm curious to see what some of my other "oldies but goodies" look like -- they're on the north side of my house, so they don't get much sun, but they're never really shaded either. Anne Lurie "Meg Trauner" wrote in message ... My azaleas have this condition also and this year is the worst ever, probably because of the moisture. Some years, the condition disappears even though I never spray fungicides. Here's an explanation: http://www.ext.vt.edu/pubs/plantdise...5/450-605.html Anne Lurie wrote: Help! Some of my azaleas have weird greenish-white things on the leaves -- the plants look as though garden gnomes came in & stuck popcorn on the leaves! These things are on the underside of a leaf, and there's a hole where something apparently chewed its way out, if that makes any sense. What should I do now? Should I spray the plants with pesticide? If these things were caterpillar chrysalises(?), the caterpillars are gone. So far, only my older azaleas seem to have this problem, but I'd obviously like for it not to spread to the dozens of newer azaleas I've planted in the last few years. Thanks, Anne Lurie |
#5
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Azalea Problem
Some of my azaleas have weird greenish-white things on the leaves -- the
plants look as though garden gnomes came in & stuck popcorn on the leaves! Not sure whether ours are the same thing, but in the recent past (haven't checked lately) some of our azaleas---mostly Formosa---have had thick, fleshy greenish-white things on the leaves. I don't have it on authority, but I've assumed they're some sort of plant tumor. Also, I don't know if they cause the plant(s) major hurt or if they're "contageous", so I've pulled off the infected leaves and put them in the garbage to be taken away, NOT on the ground. Patti |
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