Tag Archives: Oak wilt

2011 Red Oak Wilt Movement and Behavior

The disease evidently arrived when the powerline went in running north to south at the top of the ridge on the far left side of the pic.  Or possibly when that gravel pit was scooped out just to the right of the earliest attack.  Those earliest trees have been dead at least five years.

In 2010 it moved abruptly downgrade attacking the trees surrounding the cabin and in the vicinity of the chickenhouse.  But I hadn’t noticed until I viewed the sat-image that it’s also moving west beyond the ridgeline [far left].   Beyond that ridge and to the west it’s heavily treed with oaks all the way to the western property line. 

Judging from what’s happening to the west of the ridge there mightn’t be a red oak left on that side of the property within a couple of years.

But downgrade to the east there doesn’t appear to be any infestation at all, yet.

Truly a mystery.

Old Jules

My 2011 posts about this:

Oak Wilt, Firewood and Sawmilling, For Want of a Nail – Something Worth Knowing Chainsaw-wise, A Poem as Lovely as a Tree – An Oak Ponders Oak-Wilt, Outsmarted by a Dead Tree.

Oak Wilt, Firewood and Sawmilling

Two years ago these were healthy trees.

About a year ago the trees in the vicinity of the cabin began dying.  I’d been fairly certain it would happen because there’s a grove immediately above about 100 yards that had all died off two or three years ago.  It appears to have started at the power line easement atop the hill and is making a path of dead trees moving east, or downhill.

Conventional wisdom is that it’s Red Oak Wilt, or Red Oak Disease.  There aren’t a lot of certainties about it, no preventive measures or cures anyone’s aware of.

Over the space of about a month they lost all their leaves and the bark began separating from the wood.  One of the problems with trying to get them down is the abundance of wasps making nests between the wood and the bark.  Hundreds of wasp nests and clouds of angry wasps.   The temptation is to wait for a cold day.

There was a certain amount of urgency about trying to take some of them down because after Oak Wilt kills a tree the first strong wind often brings it down.  Evidently the disease rots the root system long before anything shows above ground.  Several of the dozen-or-so trees dying immediately around the cabin and outbuildings actually have large limbs hanging over roofs.

But the nights are cooling enough to send the message it’s time to begin building a pile of firewood.  It won’t take much hauling this year.  Some of it I could almost cut and allow it to drop down the chimney pipe.

The larger trunks are going to be a major undertaking to split, so I’m thinking I might sawmill any of them with potentially good lumber left.  Sometimes Oak Wilt rots out the center too badly to leave anything worth using except to burn, but sometimes it leaves the heartwood almost untouched.

If there’s enough capable of being sawmilled it might provide enough oak for a project I have in mind cut relatively thin into planks usable for building a structure.  But in any case it ought to stay toasty inside the cabin this winter.

Old Jules