Newly planted Oaks stem exudate

[Al Cormack]

The two oaks were planted last year by a landscaping company to replace two oaks that were felled (not by me) as they were dying. From what i can gather there was a lot of landscaping done at the site, and the soil levels were built up around the original oak trees, compacting roots etc.

 

What could be causing this to the new trees? Phytopthora?

 

 

[Khriss]

I dont like the look of that A- hope they were not planted in same place as the removals an B- those don't look cheap ! K

[Gary Prentice]

You can buy a phytophthora test kit for less than a tenner.

 

Honey fungus is another possibility, but I think it's less likely.

 

 

[Al Cormack]

Thanks for the replies. The trees are just down the road from Alice Holt Research so have suggested they contact them as well.

[tree77]

On ‎19‎/‎02‎/‎2018 at 20:27, Gary Prentice said:

You can buy a phytophthora test kit for less than a tenner.

 

Honey fungus is another possibility, but I think it's less likely.

 

 

where do you buy your test kits from?

[Gary Prentice]

I’ve never needed to go that far, but did research it.

 

Try pocketdiagnosis.com or search ‘ phytophthora test kits’

[timbernut]

AOD another possibility? Exudate often smells sweet, kills mature trees in a few months

[Gary Prentice]

6 hours ago, timbernut said:

AOD another possibility? Exudate often smells sweet, kills mature trees in a few months

The FC website say AOD is more usual on mature trees, have you seen it on new plantings or read anything different. 

 

Not disagreeing that it could be, just trying to improve my own knowledge.

[timbernut]

I've, personally, only seen it on mature trees, and am certainly not expert on pathogens, they just looked the same!
I thought I'd seen pictures of young trees infected but after goin through bits n pieces they are of saplings deliberately inoculated with bacteria and some with Agrilus larvae ( Bangor university I think )
It was in a report on AOD research mid 2015