Evans

Seedling
Messages
12
Reaction score
1
I’m still struggling to figure out what’s wrong with my American Hornbeam. A ton of leaves have these black spots showing up on them.

I suspected fungus so I removed all the leaves with spots and sprayed with fungicide some weeks ago, but that didn’t seem to have any effect on the tree. Overall the tree still seems healthy. It’s in great we’ll draining soil (although I think it’s been overwatered a tad bit before), and it’s pushing new growth regularly.

I’ve looked all over the internet for similar posts and pictures, but have found nothing similar, so I’m seriously lost.
 

Attachments

  • A28F8658-28E9-4D50-A613-A9C533D68630.jpeg
    A28F8658-28E9-4D50-A613-A9C533D68630.jpeg
    197 KB · Views: 50
  • B8355F98-0EE5-4931-9722-281C5C0491A7.jpeg
    B8355F98-0EE5-4931-9722-281C5C0491A7.jpeg
    199.2 KB · Views: 49
  • D52F3B9C-82D8-46F5-93DB-D402B6725F72.jpeg
    D52F3B9C-82D8-46F5-93DB-D402B6725F72.jpeg
    213.3 KB · Views: 49

HorseloverFat

Squarepants with Conkers
Messages
11,356
Reaction score
16,220
Location
Northeast Wisconsin
USDA Zone
5a
I suspected fungus so I removed all the leaves with spots and sprayed with fungicide some weeks ago
Did you just treat once?...
With Spray Fungicide, I believe there is a more rigid schedule..

Even with “pour-through” fungicides, it’s recommended To do a follow-up treatment after 7-10 days... or else many spores will “go again”.. and just resume life in your plant...
 

Evans

Seedling
Messages
12
Reaction score
1
Did you just treat once?...
With Spray Fungicide, I believe there is a more rigid schedule..

Even with “pour-through” fungicides, it’s recommended To do a follow-up treatment after 7-10 days... or else many spores will “go again”.. and just resume life in your plant...
I sprayed twice. With the recommended days between sprays. Unfortunately it doesn’t seem to be working at all, which leaves me to wonder if:

A) my fungicide is working
B) if what I’m seeing is even fungus at all..lol
 

ABCarve

Masterpiece
Messages
2,676
Reaction score
11,452
Location
Girard, PA
USDA Zone
5a
It’s probably from a repot/root prune. Mine does this after such treatment. It can’t take up water as well. I have some young seedlings I dug this spring that look like this. It will go away next season.
Never had a fungus problem with American hornbeam.
 

ConorDash

Masterpiece
Messages
2,699
Reaction score
3,154
Location
Essex, UK
USDA Zone
8b
Try not to worry too much about little things like this.
If it spreads more, gets bigger on the leaves, or you see a decline in vigour of the tree, then sure, worry.

Its very normal to get blemishes on leaves, of all kinds. Try not to sweat the small things. Just keep a closer eye.
Usually its some kind of combination of lack of water and weather, wind, sun etc. Care for it as normal, water as normal. See what happens.
 

Evans

Seedling
Messages
12
Reaction score
1
It’s probably from a repot/root prune. Mine does this after such treatment. It can’t take up water as well. I have some young seedlings I dug this spring that look like this. It will go away next season.
The tree has never been reported or root pruned. It’s still in a large grower pot.

but it puts me at ease knowing someone else has the same issue! Thanks.
 
Top Bottom