Witches Broom in Hackberry Trees

anntn6b(z6b TN)April 15, 2008

Is anyone else seeing Witches Broom in their Hackberry Trees?

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myrtleoak(z7 TN)

Give latin name. Is it a true broom?

    Bookmark   April 15, 2008 at 5:39PM
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anntn6b(z6b TN)

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

    Bookmark   April 15, 2008 at 7:26PM
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tngreenthumb(z6 TN)

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.

    Bookmark   April 16, 2008 at 9:56AM
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brandon7 TN_zone(7)

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)

    Bookmark   April 16, 2008 at 12:51PM
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myrtleoak(z7 TN)

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.

    Bookmark   April 16, 2008 at 9:44PM
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