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Witches Broom in Hackberry Trees

Posted by anntn6b z6b TN (My Page) on
Tue, Apr 15, 08 at 13:58

Is anyone else seeing Witches Broom in their Hackberry Trees?


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RE: Witches Broom in Hackberry Trees

Give latin name. Is it a true broom?


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RE: Witches Broom in Hackberry Trees

I don't think there is a Latin name beyond Candidatus spp.. It's a phytoplasma caused growth aberration that is many axilary breaks from a single growth/leaf axil.
Witches Broom is fairly common in plant pathology literature, most often as a symptom of phytoplasmas (that used to be called MLOs, Micoplasma Like Organisms. Asters Yellows is a common one.)
The link below is a good intro to what some of the phytoplasma caused symptoms look like.

Here is a link that might be useful: Good intro to phytoplasmas


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RE: Witches Broom in Hackberry Trees

I haven't seen any recently, but I did run into that down home a few years ago. For those that aren't familiar, here are some pics.


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RE: Witches Broom in Hackberry Trees

  • Posted by brandon7 6b (like 7b now) TN (My Page) on
    Wed, Apr 16, 08 at 12:51

Here's an article that gives more information about these for anyone interested.

Here is a link that might be useful: Witches' Brooms in Celtis (a.k.a. Hackberry)


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RE: Witches Broom in Hackberry Trees

BTW what is the easiest way to differentiate the Northern and Southern (Sugarberry) species? Smoother trunk? Smaller leaves? From what I have gathered, there seems to be both in the valley. If I am correct in my identification, Sugarberry is slightly more common that Northern.


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