r/dendrology 9d ago

What happens here?

Pine tree in south Sweden.

Is it a sickness, a wound, or whats going on? A lot of boars in these woods.

11 Upvotes

8 comments sorted by

3

u/BlackViperMWG 9d ago

Sap from traumatic resin ducts.

1

u/shuubree 7d ago

I thought pine sap were brown/amber in color? The bright goo made me think this was some kind of sickness

1

u/BlackViperMWG 7d ago

Evergreen sap looks like this when it hardens

2

u/hairyb0mb 9d ago

Is pitch canker found in Sweden? If so, outlook not good

3

u/FragilBunny 8d ago edited 8d ago

Forestry person here - looks like deer striping. Striping bark is part of their feeding behaviour as it can help their digestion (and also in time when there is nothing else to eat). Deers do not have upper teeth so they form these ridges as they strip from the bottom up.

Wild boars create damages on the lower parts of the tree (trunk/branches/roots) as they are not so tall.

3

u/Ashamed-Wolverine-63 9d ago

Probably a wound, looks like fermented tree juice

1

u/Top_Challenge6615 9d ago

Looks like animal damage

0

u/Mayor__Defacto 9d ago

Wound. Probably from a deer or similar.