Strange brown spots?

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Strange brown spots?

Post  katsols on Fri Apr 06, 2012 9:06 pm

I wasn't sure where to post this, i don't know if it's a disease or fungus. But basically i noticed these brown spots on my azalea, they were only right under the young light green looking leaves and on the young ones too. Strangely, it had this only on one half of the azalea, on the other half there was barely any. This is only on the top leaves, the rest of the leaves are healthy dark green and glossy. What could this be?


p.s. this is not an official bonsai azalea yet, it's in a regular pot outside so it would get a little bigger.

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Re: Strange brown spots?

Post  Billy M. Rhodes on Fri Apr 06, 2012 9:12 pm

Have you recently moved the plant from a shady location into full sun?

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Re: Strange brown spots?

Post  katsols on Fri Apr 06, 2012 9:15 pm

Billy M. Rhodes wrote:Have you recently moved the plant from a shady location into full sun?
I'ts in a semi shaded location under a plant shelf, it has shadows on it here and there and sun rays here and there also.

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Re: Strange brown spots?

Post  Billy M. Rhodes on Fri Apr 06, 2012 9:24 pm

I thought it might be sunburn, but if has not been exposed to too much sun

Maybe
Rhizoctonia Blight

Rhizoctonia Web Blight results in tan or black spots growing on leaves, eventually expanding and engulfing the entire leaf, according to the Cooperative Extension Service of Pennsylvania State University. The blight could bring about the death of smaller plants. Avoiding watering the rhododendron in the late afternoon may help the shrub resist this condition.

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Re: Strange brown spots?

Post  Orion on Fri Apr 06, 2012 10:11 pm

It looks like a fungus. Is the plant staying damp most of the time?

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Re: Strange brown spots?

Post  katsols on Sat Apr 07, 2012 12:46 am

Orion wrote:It looks like a fungus. Is the plant staying damp most of the time?
the soil and mulch around it was a little damp but i let it dry out a bit

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Re: Strange brown spots?

Post  Billy M. Rhodes on Sat Apr 07, 2012 1:04 am

rhododendron is the scientific name for Azaleas.

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Hi katsol

Post  tap pi lu on Sat Apr 07, 2012 12:31 pm

katsols wrote:I wasn't sure where to post this, i don't know if it's a disease or fungus. But basically i noticed these brown spots on my azalea, they were only right under the young light green looking leaves and on the young ones too. Strangely, it had this only on one half of the azalea, on the other half there was barely any. This is only on the top leaves, the rest of the leaves are healthy dark green and glossy. What could this be?


p.s. this is not an official bonsai azalea yet, it's in a regular pot outside so it would get a little bigger.
[left]
This is sick "spotted leaves '
cut off the leaves and carries the disease.
This disease also often occur with other types of orchids and some other crops.
not dangerous but losing the beauty of trees

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Re: Strange brown spots?

Post  katsols on Sat Apr 07, 2012 8:03 pm

Ok as long as it's not dangerous. I was worried, i really don't want to loose this plant

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Re: Strange brown spots?

Post  Billy M. Rhodes on Sat Apr 07, 2012 9:06 pm

This disease also often occur with other types of orchids and some other crops.
not dangerous but losing the beauty of trees

I seriously doubt that the same disease that attack Rhododendron/Azalea family plants would attach Orchids. This might be a language issue. A lot of plants get "fungus" but most/many are species specific.



















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