perestroika77
Posts: 1
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| Posted: Tue Jan 27, 2009 7:33 am Post subject: Someone help me identify this cactus disease... |
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Can anyone recognize the bulging spots circled in red?
https://secure.wikimedia.org/wikipedia/en/wiki/File:Cactus_disease.JPG - this is the link to a photo I took
I believe them to be inflicted by insects; pardon my poor photo-taking skills for the blurriness. They can be rubbed off quite easily leaving a brown stain. They seem to be robbing the cactuses of nutrition - clearly some parts are very dry and thin.
The yellow circles show a brown scarring also appearing on the cactuses. These, I believe were not insect-caused and do not rub off; they started to appear along with the spots I've described above.
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Droopy
 Regular Plants Contributor
Western Norway
Posts: 9272
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| Posted: Tue Jan 27, 2009 8:34 am Post subject: |
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Hello, Perestroika, welcome to the Stew.  I had a look at your plant, but I'm afraid I haven't had anything like that on our succulents. Hopefully someone on here will know what it is.
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toni
Administrator
Plants Moderator
Regular Plants Contributor
North Texas, Zone 8a
Posts: 11249
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| Posted: Tue Jan 27, 2009 2:50 pm Post subject: |
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Hi Perestroika, welcome to GardenStew from north Texas.
I believe your plant is an Aloe Vera, they are in the succulent family and their main two pests are Mealy Bugs and Scale Insects.
Those spots appear are caused by Scale Insects. You can wipe the red spots off with a cotton swab dipped in rubbing alcohol then spray the plant with a horticultural oil spray as directed on the packaging.
Hope you stay around, how about posting an introduction of yourself in the Welcome to GardenStew forum so we can all get to know you.
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To be interested in the changing seasons is a happier state of mind than to be hopelessly in love with Spring ----
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