Silver maples looking thin...

stheis004

Active Member
So disease isn't my specialty at all but this spring I've noticed quite a few silver maples looking just generally thin. In my experience, it's been extremely rare to see one not looking super full and when one has had an issue, there's been an obvious reason. While driving around town lately I'm seeing this thinning pretty much all over the place, not every one, but many of them...any thoughts? (Oh btw, Milwaukee, WI)
 

CanadianStan

Well-Known Member
Following .. a beautiful silver I cabled and reduced 2 years ago is showing mild thinning ... not promising for a massive tree
 

stheis004

Active Member
Heavy seed year here. Allocation of resources and whatnot.
so to dump it down a bit is this what you're saying...because they put extra energy into seed production first thing this spring, there was less energy/resources left over for leaf production, and they may still fill in throughout the year?
 

stheis004

Active Member
and does anyone know if the heavy seed production is more a cycle or more a reaction to stress (maybe late winter being extra cold this year?)
 

JD3000

Most well-known member
Can be stress induced perhaps but usually late frosts kill fruit and flowers and prevent heavy seed production
 

Tom Dunlap

Here from the beginning
Reproduction can be stress stimulated. One last gasp before death. Before the very large American elks...elms...lol... died it was taken as a warning sign one year to expect to see flagging later in the summer. Not a 100% but maybe 80%

On the other hand it can be very positive. The tree has lots of energy to reproduce as well as put on vegetative growth
 

SamNQ

New Member
hey im in the same area and noticed the same problem and had a few clients concerned as to why leaves were dropping late spring/early summer. As you probably know, we had a wetter and longer spring then usual, which is a perfect combo for foliar funguses. My guy who is a phc specialist told me its most likely antracnose which doesn't kill the tree. My neighbors
mature Silver Maple had a significant leaf drop but now is looking fine and normal. Did you find any conclusions?
 

stheis004

Active Member
hey im in the same area and noticed the same problem and had a few clients concerned as to why leaves were dropping late spring/early summer. As you probably know, we had a wetter and longer spring then usual, which is a perfect combo for foliar funguses. My guy who is a phc specialist told me its most likely antracnose which doesn't kill the tree. My neighbors
mature Silver Maple had a significant leaf drop but now is looking fine and normal. Did you find any conclusions?
Nothing conclusive really....from what I've observed, they all more or less seem to have filled in and look normal now
 

dsptech

Well-Known Member
Was in a few Silvers today.
They all were filled in well.
Neighbors hardwood maple has spots on the leaves but he also has poor drainage and we've been pummeled by heavy rain this year.
 
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