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Brown marks on cacti

Posted by old-n England (My Page) on
Wed, Nov 3, 10 at 12:59

I enclose a photo of a cucti with the brown marks, I have two cacti with these marks but this one can be see better.

http://i412.photobucket.com/albums/pp209/old-n/DSC03698.jpg


Follow-Up Postings:

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RE: Brown marks on cacti

Sorry, but what we need you to pls. provide here is the THIRD LINE in Photobucket, the one w/ the HTML code.


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RE: Brown marks on cacti

Here you go...Sorry I can't help you, hopefully someone here will be able to. Good luck!


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RE: Brown marks on cacti

This looks like a non-variegated growth from Opuntia monocantha variegata. I'm pretty sure it's not scale or any disease, just the natural process of "lignification." Many Opuntias get brown spots and eventually turn woody as they grow older, and this process is accelerated when a plant is grown from cuttings, as yours almost certainly is.

There isn't anything you can do to stop the process. Just enjoy its "gnarly" look :)

-R


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RE: Brown marks on cacti

  • Posted by hoovb z9 Southern CA (My Page) on
    Wed, Nov 3, 10 at 21:46

We saw some huge old Opuntias when hiking on Catalina Island. The lower parts had turned into a woody/barky structure that looks more like a tree trunk than an Opuntia. Pretty amazing.


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RE: Brown marks on cacti

You can see some ancient ones like that in old westerns sometimes. They look like gnarled old trees with the pads for leaves. Incredible.


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RE: Brown marks on cacti

  • Posted by old-n England (My Page) on
    Fri, Nov 5, 10 at 10:28

I have it on two cacti, but this one is only about three years old.

I don't know if it was from a cutting or not it came from a supermarket.

The other one did come from a cutting and is about four years old I enclose two photos one close and the other so you came see the whole plan.

Photobucket

Photobucket

I have one a lot older, where this one was taken from and that as no brown marks.


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RE: Brown marks on cacti

Having been to jolly old England on several occasions in years past, I know it can be very damp and humid there. Are you sure some of the spots on your Opuntia are not from high humidity? Just a thought. As the plants are not that old, I don't think the spots are due to a natural process.

Christopher


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RE: Brown marks on cacti

Looks as if the skin has split vertically and then healed (scar tissue).


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