white ash deformity

[Gopher]

Pictured below is a deformity on a white ash trunk. Is it a canker?

It encircled the stem; I cut it apart and it appears to have only affected this years growth (wood).

Also, similar cankers (for lack of knowing) are on a few willow stems as well.

I'd appreciate any input.

Thank you.

Gopher

 

[Gopher]

additional photo

Another photo

 

[B.Secord]

I don't think it is canker, looks more like Bamby may have taken a nibble on it. We have seen porcupines chew ALL the young succulant bark off trees up to about 55'. Hope this helps!!!

 

[Ax-man]

Looks like a canker to me.

Larry

 

[Kneejerk Bombas]

Are the "cankers" on the other stems at exactly the same height as this "canker"?

 

[Gopher]

Canker, no?

Mike, the other deformities (on the willows) were not at the same height. We saw some problems, which appeared to be physical in nature, on a few other stems that may have been caused by the tag.

The ash appeared to be well cared for, and healthy except for the section I showed.

Gopher

 

[Gopher]

Cicadas

We do have cicadas, but not yet. Typically they are around alittle later in the summer, and I haven't heard any as of yet.

Do they feed on the stems? I am not very familiar with their habits.


Gopher

 

[Guy Meilleur]

Looks physical not fungal. First pic shows green cambium above and below necrotic spot; lateral pattern indicates browsing.

 

[John Stewart]

Hey
I agree with Rocky!
The second pic looks like the nursery tied it to long and tight to the lines that hold the trees up in container grown stock
I doubt the other pic is canker because it probably would not encompass the entire trunk more like 1/4 to 1/3 of the diameter
John

 

[murphy4trees]

Here's another question for ya...

Why plant ash now anyhow? Does that really make sense with the emerald ash bettle looming on the horizon?

 

[Guy Meilleur]

Originally posted by murphy4trees
Why plant ash now anyhow? Does that really make sense with the emerald ash bettle looming on the horizon?

Don't plant ash cuz of EAB, don't plant maple cuz of ALB, don't plant red oak cuz of wilt or SOD, pretty soon you can't plant anything, dm. Reductio ad absurdum works here, I think. Nuts maybe to germinate ash seeds in michigan, but let's not get too fatalistic, ok?

 

[Gopher]

Many thanks...

I agree, Guy, that we need to continue with diversity.

As I look at the hypothesis coming in, physical damage does seem to be the most reasonable here. And since the other stock appears to not have this "collar" of scar tissue, this one must have been tied, taped, labeled or handled at that point improperly.

The couple of willow have some spots that appear more canker like at or near old prunes, some very low on the stem. My only concern here is that the tissue surrounding the "spot" seems to be in poor health, and as some of them are almost 1/2 the stem diameter, I am wondering if the top growth would die back and start to sucker lower. This appears to be happening on two of them.

Life in the fast lane is slower when everyone is on it!!!

Thank you all.

Gopher

 

[Guy Meilleur]

Re: Many thanks...

Originally posted by Gopher
The couple of willow have tissue surrounding the "spot" seems in poor health, and as some of them are almost 1/2 the stem diameter,

Have you considered excising the canker and disinfecting? Wound response on young willow should be pretty fast, so this may be preferable to either leaving it alone or cutting it below the canker and retraining.

O and on the ash, the lateral markings that I thought may indicate browsing may also indicate rubbing from a bad tie job. So I think Rocky may have gotten it right this time, as usual.:angel: