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nafex - Re: [NAFEX] AACK! Persimmon borers(?!)

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  • From: Lucky Pittman <lucky.pittman@murraystate.edu>
  • To: North American Fruit Explorers <nafex@lists.ibiblio.org>
  • Subject: Re: [NAFEX] AACK! Persimmon borers(?!)
  • Date: Wed, 02 May 2007 16:22:44 -0500

At 04:44 PM 5/2/2007, Hal wrote:
Do these "frass tubes" look like white-ish extrusions, about the diameter of
a toothpick, that stick out from the bark up to about an inch long? Just
curious, as I am seeing these types of thin cylinders all over several of my
freeze damaged plants. The thin cylinders are light and soft, and
disintegrate to an ash-like consistency when touched. My fig trees are
covered with them, and there are a few on the kiwi trunks as well. I had
assumed they were some sort of extruded material in response to freeze
injury, since most do not seem to be coming from any obvious holes in the
bark.

That's a perfect description of them - I've not seen them on anything other than the persimmons, but I've not really looked, either.

While on my regular lunch hour stroll yesterday, I detoured through the courtyard of the community college campus across the street from my office to see what, if any, damage the sizeable trifoliate orange tree sustained - it looks BAD! most of the branches/twigs are yellow, with extensive splitting. Most leaves are wilted/yellow, though there are occasional clumps of healthy green leaves here and there - mostly underneath an overhanging second story.

LLP






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