Pinus banksiana 'Uncle Fogy'

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Pistil Lake Stevens, WA(Zone 8a) Feb 03, 2015

This is a cultivar of Jack Pine that I really like. It is contorted and grows sideways. This one was growing out over the sidewalk, so they pruned it last year. Here are some photos I took a few days ago.

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Pistil Lake Stevens, WA(Zone 8a) Feb 03, 2015

When I got in close with my cell phone, I noticed these "growths". I think it might be hardened sap from the pruning cuts, but I am not sure. They are firm, not sticky. When I got close I noticed the little holes bored into them. They are of varied sizes, the biggest may be a bit over 1/4". Any ideas what might live in there?

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Pistil Lake Stevens, WA(Zone 8a) Feb 03, 2015

oops here are the other photos.

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Resin Northumberland, United Kingdom(Zone 9a) Feb 05, 2015

Bark beetles . . . not good.

Resin

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Pseudo Eau Claire, WI(Zone 4a) Feb 05, 2015

I can't say I've ever seen anything like that on the gazillions of Jack Pines growing around here. What a shame -- looks like a nice specimen of Uncle Fogy.

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Pistil Lake Stevens, WA(Zone 8a) Feb 05, 2015

Interesting. Thanks Resin, I was curious about it. The tree might be a goner, but it was overgrowing the space anyway. So far it does not look sick...

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HoosierGreen Danville, IN Feb 06, 2015

I'm sure Resin is correct. The beetles will eventually kill the tree. However, they can usually be killed by using a systemic such as Bayer 12-month insect control for trees and shrubs. Since the 'Uncle Fogy' is not really large (compared to regular Jack Pines) a yearly application should do the trick. You can get the Bayer systemic insecticide at garden centers and big box stores.

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Pistil Lake Stevens, WA(Zone 8a) Feb 06, 2015

Well it's not my tree, it is on the grounds where I work in Seattle. I have some of the Bayer systemic, for my houseplants, and it seems to work great. I don't put it on my outside plants because I don't want to poison the other insects. In my yard, I figure if it has pests, maybe I should plant something else. Any insect inside my house is fair game!

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