Strange bubbles on oak tree

[Steve Bullman]

Any idea what this is?  Was carrying out a picus Test in an oak tree with dryadeus present.  As the day went on and the rain came down there was some strange bubbling going on at the base of the tree where the water was running down the trunk, never seen anything quite like this before

 

 

 

 

[Macpherson]

Hi, I've noticed similar on a large beech that I walk past regularly, not got a clue what it is...but wondered if it was something that the tree was exuding that's getting washed down when it rains, perhaps sap as many of these trees have serious squirrel damage, cheers.

[David Humphries]

I think it’s just frothy rain water caused by a volume of h20 bouncing and dripping off the bark after a significant down pour, no?

 

Bit like when you hold in a full bladder whilst ya busy and then let rip and it bounces off and down what ever your pissing against ?

[Steve Bullman]

3 minutes ago, David Humphries said:

I think it’s just frothy rain water caused by a volume of h20 bouncing and dripping off the bark after a significant down pour, no?

 

Bit like when you hold in a full bladder whilst ya busy and then let rip and it bounces off and down what ever your pissing against ?

In just one place though?  Almost looked like a reaction to something

[slack ma girdle]

Often get it with bacterial wet wood

[Adam M]

Chemicals on tree bark behaving a little soapy, from memory. 

[Gary Prentice]

What's it taste like? 

[westphalian]

I bet it tastes like dog piss

[treeseer]

Frothy flux  http://www.historictreecare.com/wp-content/uploads/2015/08/Ooze-in-the-News-from-TCI-Magazine-09-04.pdf

[westphalian]

Nah. Dog piss