Brown marks on cacti

oldun2November 3, 2010

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.

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pirate_girl(Zone7 NYC)

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

    Bookmark   November 3, 2010 at 3:28PM
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puglvr1(9b central FL)

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

    Bookmark   November 3, 2010 at 8:01PM
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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 :)


    Bookmark   November 3, 2010 at 8:29PM
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hoovb zone 9 sunset 23

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.

    Bookmark   November 3, 2010 at 9:46PM
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You can see some ancient ones like that in old westerns sometimes. They look like gnarled old trees with the pads for leaves. Incredible.

    Bookmark   November 4, 2010 at 12:49AM
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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.

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

    Bookmark   November 5, 2010 at 10:28AM
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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.


    Bookmark   November 5, 2010 at 7:51PM
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Looks as if the skin has split vertically and then healed (scar tissue).

    Bookmark   November 6, 2010 at 12:22AM
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