North American Fruit Explorers mailing list at ibiblio

["Dennis Norton" <dmnorton@royaloakfarmorchard.com>]

Bruce,

Sounds like a borer larvae.  Check out 
http://www.ento.vt.edu/Fruitfiles/Prionus.html which is the prionus borer 
that likes to attack apple tree roots.  Hope this helps!

Dennis Norton
Royal Oak Farm Orchard
http://www.royaloakfarmorchard.com
http://www.theorchardkeeper.blogspot.com



----- Original Message ----- 
From: "bruce" <rural@threeriverwb.net>
To: <nafex@lists.ibiblio.org>
Sent: Thursday, August 10, 2006 9:34 AM
Subject: [NAFEX] Worm in apple rootstock


> Yesterday I was making some grafts. On one rootstock, I made a vertical 
> cut down the stem for a chip bud graft. When the cut piece fell away, 
> instead of a healthy looking interior, the cut was covered with what 
> looked like a layer of sawdust. At the base of the cut, there was a small 
> hole and I was able to extract a small worm from the hole. It looked 
> somewhat like a white grub, but it was diamond shaped and flat instead of 
> round, about 1/4" long. I'm assuming the rootstock will eventually die 
> from this damage, but I'll just leave it to see what happens. I should add 
> that the rootstock has been in the ground for over a year and is not fresh 
> from the nursery. Any ideas of what this worm might be?
>
> Thanks,
>
> bruce