norway maples hate all this rain too!

[blewgrass]

anyone else been noticing norway maples browning and losing their leaves prematurely this year? Seems like the wet weather up here in the northeast has messed them up a little.

 

[TDunk]

I personally haven't noticed it, and i've been doing alot of those this year. How long has it been raining up there ?

 

[BarkBuster20]

this summer has been very strange in these parts, certain plants blossoming months before they should, just for starters.

 

[treevet]

This is the weirdest summer I can remember for decades. Coldest July in weather keeping history. Maybe in same range for Aug.

Norways famous for Verticillium wilt. Weed tree IMO anyway.

 

[oldirty]

i agree about them not being the best variety of maple. what other tree would you consider a weed tree?


and yes its been a very strange summer, weather wise.

 

[treevet]

i agree about them not being the best variety of maple. what other tree would you consider a weed tree?


and yes its been a very strange summer, weather wise.

Ailanthus for one OD

 

[BarkBuster20]

i consider cottonwood a weed

 

[blewgrass]

Oh, I totally agree with the "weed tree" notion. I have not shed a tear for any norway I've removed. In fact I'm more on the happy side because they are dropping their leaves early which means I won't be raking leaves into december.

 

[tomtrees58]

makes good firewood tom trees

 

[BarkBuster20]

how i look at it, is if the mill will take it, or if its good firewood its not a weed. anything else is a weed.

 

[oldirty]

Ailanthus for one OD

oh for sure. smells like rotten peanut butter to me when cutting and even worse getting chipped. as much as i hate that tree i still gotta throw it some respect. no matter where that thing grows its going for it. by any means necessary. and then when you show up to take it down she gonna fight you every step, rattling some bones off and scaring the piss out of you with the rotten butt.

barkbuster, there once was a day i mightve agreed with you wholeheartedly but i no longer can. i got into the preservation side of the game for a few years and gained a good appreciation for a beautiful tree, firewood or not. with that tree hugged i will finish with cottonwoods suck too. lol.

bittersweet anyone? talk about a jerk plant.

 

[limbwalker54]

I've noticed MANY more cases of Verticillium wilt in this area (S.E. PA) on Norway Maples. I've done five this year that were confirmed cases. Perhaps the wet weather has increased the activity of the disease in this respect. Check those trees that are dropping early. They might be dying from the same thing.

 

[mckeetree]

she gonna fight you every step, rattling some bones off and scaring the piss out of you with the rotten butt.

That sounds like a gal a friend fixed me up with back in '83. It was a one time deal, that's for sure.

 

[TALLGUY]

could this be the same thing that is killing all the Silver Maple in the Iowa South Dakota area? Everyone I see has been yellow all year. Many have dropped all there leaves and are dead.

 

[treevet]

This is the weirdest summer I can remember for decades. Coldest July in weather keeping history. Maybe in same range for Aug.

Norways famous for Verticillium wilt. Weed tree IMO anyway.

My initial thought too.

 

[oldirty]

tell me in layman's terms what this verticillium wilt is. see if i recognize it without even knowing what it is scientifically. please.

 

[treevet]

tell me in layman's terms what this verticillium wilt is. see if i recognize it without even knowing what it is scientifically. please.

Read this simple description and then ask questions if you have any OD.

http://www.extension.umn.edu/distribution/horticulture/DG1164.html

 

[blewgrass]

see?

 

[treevet]

Leaf disease, in this case pushed by abnormally wet weather, usually do not signal the demise of the tree. The tree still has plenty of leaf space to photosynthesize in the spring although as mentioned in the art. they often defoliate earlier than usual (Leaf blotch of Horse chestnut is another good example). This can cause the weakness that insects and other diseases such as Vert. wilt can use to pass the tree's defense system.

Funny in the art. mention of a red/purple red leaf color. My guess is this is describing a cultivar of N. maple such as Crimson King and not Norway maple that is a dark green.

I am surprised that we do not include bark or periderm/phloem as Wall 5 in the CODIT model as it is a boundary zone having a physical barrier, chemical barrier (phenols, tannins) and in dealing with EAB in my area I come to find out from the research experts that it also emits "odors from the phloem" that reject insect attack (EAB in Asia) and likely they resist pathogens as well.