Bark Destruction - Is that a hole I see?

j0nd03September 12, 2011

I, like Arktrees, have also had my fair share of disease on about 12-13 trees. I thought I had some kind of fungus rotting around the base of my trees that spread when I dug up and replanted everything this spring without sanitizing my pruners between projects. Each tree had pretty extensive root pruning and I was pretty sure that is how it spread.

So... I go out to take pics of the diseased/damaged bark and what do you know, EXIT HOLES on every one. A couple of trees are nearly girdled from the bark destruction. I have no pics of the critters but I was removing damaged bark a week or so ago and long green worm landed on the ground. I was pretty sure I knocked it off a leaf above however.

Each pic is a different tree. Most trees are October Glory or Red Sunset maples and there is one Harvest Gold crabapple and 1 Forest Pansy redbud. I have removed the decayed tissue on nearly all because the thought of it bothers the heck out of me. All of them appear to have calloused around the wound are are healing. Should I fertilize next spring or this fall to try to speed up the wound closure? Do I need to treat every tree I have planted not just the ones displaying damage for borers? My oaks and liriodendrons were not effected by the borers that I can tell. 1 willow oak possibly but I am not sure.


By jp_42_82 at 2011-09-12


By jp_42_82 at 2011-09-12


By jp_42_82 at 2011-09-12


By jp_42_82 at 2011-09-12


By jp_42_82 at 2011-09-12


By jp_42_82 at 2011-09-12


By jp_42_82 at 2011-09-12


By jp_42_82 at 2011-09-12


By jp_42_82 at 2011-09-12

Thank you for reporting this comment. Undo
hortster(6a, southcentral KS)

No comment on fertilization (except that I wouldn't feed 'em, myself) but shooting from the hip - and from the size of the exit holes, maybe carpenterworm?
hortster

Here is a link that might be useful: Carpenterworm

    Bookmark   September 12, 2011 at 12:19PM
Thank you for reporting this comment. Undo
arktrees(6b NW Arkansas)

John,
The stuff on the Harvest Gold Crabapple (third pic from the bottom) and the last two pictures appear to be the same necrotic lesions I am dealing with. Notice that there is no callus forming along the edge of those necrotic areas. They are black sunken, and without any signs along the edge that the trees are able to resist the pathogen. If left alone the bark will crack and split above these areas. I know another person here in my area that it seeing the same thing on their crabapple.

Arktrees

    Bookmark   September 12, 2011 at 12:23PM
Thank you for reporting this comment. Undo
j0nd03

Hortster,

Exit holes on my trees are only ~2mm and are too small for the exit holes of carpenter worm per the website you provided. I will have to measure the exact dimensions when I get home. These holes ALL appeared within the last 2 days. I watered everything Saturday and began peeling off some of the diseased bark at that time. I did not notice 1 single exit hole. Diseased bark has been apparent for almost a month. We had a very nice soaking rain for a week near the end of August and I noticed the bark appearance while doing a walk-through the following week. I really think it all happened during the day yesterday/overnight last night... on all of them. Talk about nature's timing lol

Ark,

NOOOOOO! That is one of my favorite trees. It does have an exit hole that is a little hard to see in the pic with the lesion higher up. It also has a large lesion on the bottom. No hole down there yet. Damn it I wanted to keep that tree!


By jp_42_82 at 2011-09-12

    Bookmark   September 12, 2011 at 12:47PM
Thank you for reporting this comment. Undo
arktrees(6b NW Arkansas)

Looks like it started down at the graft union. It was certainly more widespread on our Harvest Gold near the graft union. Same thing has happened on our Scarlet Brandywine, and PrairieFire crabapples. Both are considered resistant to fireblight. But I did find where Botryosphaeria canker does affect crabapples as well as redbuds. Also found where it was listed as a potential pathogen to Red Maple. Still not certain it is what I have, and that was why I posted the other thread.

Our Harvest Gold was much loved by my significant other as well, but alas it had to go. I'm beginning to think that is where the problem originated.

Arktrees

    Bookmark   September 12, 2011 at 1:47PM
Thank you for reporting this comment. Undo
hortster(6a, southcentral KS)

j0nd03, I was looking at an apparent hole at the top of the wound in the fifth picture and bottom of the wound in the last picture. They looked like carpenterworm sized holes in the pix. Guess they aren't holes at all.
arktrees, folks around here have gone nuts planting Prairifire crab as it is a recommended tree on lists from extension and the KS forest service. Said to have excellent resistance to rust, scab, fireblight and mildew. They ought to have a fifth catagory for canker. Just like white flowering pear, too many have been planted because folks want their striking pinkish-red flowers making it easier for disease to spread. I will vouch that Prairifire is "canker bait" as I have watched the disease spread and become ubiquitous in this neck of the woods.
hortster

    Bookmark   September 12, 2011 at 5:09PM
Thank you for reporting this comment. Undo
whaas_5a(5A SE WI)

I have a Katsura that has a black like burn with the bark splitting like your crabapple. I'm shocked to see this on this particular tree. I'll take a pic to compare.

    Bookmark   September 12, 2011 at 9:05PM
Thank you for reporting this comment. Undo
arktrees(6b NW Arkansas)

Thanks for the info hortser. Any suggestions as to what cultivars might be more resistant to canker? I told the other half, and she doesn't want to do this again with the same cultivars, as she doesn't want to lose them again if possible. Perhaps it would be better to just replace in the spring with crabs that aren't as common in hopes that the genetic cultivar variation would be beneficial.

Thanks again,
Arktrees

    Bookmark   September 12, 2011 at 11:45PM
Thank you for reporting this comment. Undo
j0nd03

Went out to check on the willow oak I was unsure about and found this:


By jp_42_82 at 2011-09-15

4 distinct lesions... I contacted the county extension today but the one I needed to talk to was out of the office. He should get in touch with me tomorrow and hopefully we can get this figured out. I am hedging on stress from our late freeze, 2+' rain in 1.5 months, and historic hot dry summer making so many trees vulnerable. That is now quercus, malus, acer, and cercis all seemingly affected by the same pathogen. I do wonder if it something brought in from a nursery where I bought one of the trees as Ark suspects with the Harvest Gold crabapple.

All of the affected trees appear otherwise healthy relating to their canopy and leaf texture compared to trees that look unaffected.

I will be sure to post the findings.

John

    Bookmark   September 15, 2011 at 1:48PM
Thank you for reporting this comment. Undo
arktrees(6b NW Arkansas)

Are there callus developing? Almost looks like it was mechanical damage, and bark is just now falling away. If you have a camera with a Macro focus, it would help.

Arktrees

    Bookmark   September 15, 2011 at 7:53PM
Thank you for reporting this comment. Undo
hortster(6a, southcentral KS)

A number of these pictures obviously show canker. BUT, the last picture and a number of others seem to show healing wounds from what I see as borer damage, not mechanical damage, including this last picture.
I would bet that inspection under the bark would show callus reforming. I have seen this type of damage and healing at the nursery. What thinkest thou, arktrees?
Also, what are native seedlings that have not "been cared for" around the property showing? Any of the same?
hortster

    Bookmark   September 15, 2011 at 9:27PM
Thank you for reporting this comment. Undo
arktrees(6b NW Arkansas)

First, my last reply was to the Willow Oak only in the newest posted pic. I neglected to specify that. Also I don't have just a whole lot of experience with borers, but I can certainly go along with those for many of them. Except for those few that I specified about, they certainly don't look like canker's to me, and that includes the Willow Oak in the last picture. The newest pic of the Willow Oak "appears" to have a callus under the edge of the bark, which was the reason I was asking about closer pictures, and if John could see one there. If there is a callus on the Willow Oak closing the wholes, I would not worry about it too much, except for perhaps using a systemic insecticide for next year to try to head off any more problems until the trees with borer type damage have enough time to recover from transplanting, close wounds, at which time they should not need any help resist borers id conditions are reasonable otherwise. Conditions this year have simply been heavily stacked against plants, and those newly planted in particular. Several of my trees developed issues this year. Some minor, some requiring removal, some remain to be seen. I lost two Kousa dogwoods to borer's, and they aren't supposed to be much bothered by those. At least I got to see to it that the borer's died as well. :O)

Arktree

    Bookmark   September 15, 2011 at 11:56PM
Thank you for reporting this comment. Undo
j0nd03

I will make better pics my Saturday project. We are having a yard sale today and tomorrow so I can't venture far from the house anyway. It is not apparent on the pics b/c I didn't label them, but all the red maples I checked have formed a callous, while the HG crabapple has not. The lesion border is actually a florescent pinkish red. I will try to capture that in a pic. That tree has the showiest flamboyant bark of any tree I have seen locally. The willow oak and the redbud, I am not sure about callous formation. As for mechanical injury, I planted two willow oaks this spring and didn't notice anything at that time. The one not in the pic defoliated this past summer and has now re-leafed. The one in the pic never lost a single leaf BUT I did notice ants drinking sap out of the lesion before I knew it was there. They looked like cows at a watering hole. I thought at the time they were the ones that caused a small opening in the bark as it wasn't a hole per say, just a small tear in the bark. I will remove diseased bark and check for borer holes tomorrow also.

Thanks again

John

    Bookmark   September 16, 2011 at 9:05AM
Thank you for reporting this comment. Undo
arktrees(6b NW Arkansas)

John,
I have to wonder if perhaps part of all this is "wet wood". I have an ABM that is well established, has grown allot, that had some wet wood like secretions from a pruning wound. Several other trees had the same story. All well established, never having had any issues before. I attribute that to simply too many extremes generating far too much stress.

Arktrees

    Bookmark   September 16, 2011 at 9:36AM
Thank you for reporting this comment. Undo
j0nd03

I do have "... some wet wood like secretions from a pruning wound" on a couple of the larger AB maples near their base around the house. I was curious about that and it sounds like that is no big deal. So one less thing to lose sleep over lol

I just got off the phone with the county extension service. He was pretty sure it was stress induced from our weather. I told him I was giving these ~1" caliper trees 5-10 gallons/week this past summer and he said that was not nearly enough. It was the best I could do, though. He rec'd to leave everything in the ground until next year and remove any that fail to leaf out or leaf out in a manner that exhibits unacceptable form disfigurement. He also said this is most common in the bottom 1/3 of young trees. That is exactly where it is occurring.

He stated that 1" caliper trees were too large for the average homeowner. Anything in a pot larger than 3 gallons was too big. I did get a little... frustrated when he said that. I told him nearly everything for sale at retail was at least that big or larger. He said I should have planted seedlings from the forest service. That is OK if you don't mind waiting and what you want is available in their somewhat limited offerings. Whatever... I had a lot of failures even though I made sure to do everything rec'd here at GW planting tech wise. Maybe I don't know as much as I think I do lol

I wonder if the SWO that had the black stuff on it was suffering from something similar way back when earlier this spring?

Anyhoo, pics still coming tomorrow. He was a nice enough fellow who knew his stuff, but I still trust yall more ;-) Especially since he did not see any pics or take a sample.

John

    Bookmark   September 16, 2011 at 11:24AM
Thank you for reporting this comment. Undo
ghostlyvision

Oh John, your poor trees! As if this summer hasn't been nightmare enough, I sure hope they can overcome those scary looking sores.

Does the forset service ever have Honey Gold crabapple seedlings? ;)

    Bookmark   September 16, 2011 at 5:55PM
Thank you for reporting this comment. Undo
ghostlyvision

Oops, "Harvest" Gold, not honey. lol

    Bookmark   September 16, 2011 at 5:58PM
Sign Up to comment
More Discussions
Trees for wet heavy clay soil?
Trees for wet heavy clay soil? The soil is sort of...
nerys54
How to tell male and femals Black Gum apart?
There's a Black Gum tree at a local nursery, and I'm...
farmboy1
My Yoshino cherry tree hasn't bloomed yet
I live in GA and have a Yoshino cherry tree that I've...
cherryman
Is it possible to establish a leader on this tree?
I am looking for suggestion on how to make this into...
longtee81
Control Freak
On my way into B'more this morning I saw these Edgeworthia...
sam_md
Sponsored Products
Joy Carpets Baby Love Area Rug - 1532-B-BOLD
$129.99 | Hayneedle
Luxembourg Table 56" x 32" - Fermob
$1,217.00 | HORNE
14 Series Twenty-Six Pendant Chandelier by Bocci
$11,960.00 | Lumens
Homelegance Pottery 2 Piece Panel Bedroom Set
Beyond Stores
Patio Living Concepts Outdoor Lighting. Bahama Weave Mocha Cream Thin Weave 34 i
Home Depot
Luminescent Rug 5'6" x 7'5" - PLT/BLUE GRAY
$759.00 | Horchow
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™