Plastic Bags on Pine Trees......

[Alex H]

any ideas why?

Had already passed about 10 which seemed to be filled with a black liquid

 

[shouldbeinbed]

Insect and bug survey??

 

[steve50]

Collecting resin from the pine trees is what they appear to be there for, google, plastic bags from pine sap.

 

[Pro Tour Punditry]

Glue-sniffing tree problem?

 

[deptfordmarmoset]

Are there any local vignobles that produce resinated wines?

 

[Spinney]

I thought this was going to be a (justified) rant about plastic carrier bags blowing around and getting stuck in trees!

 

[Alex H]

Correct. By the look of it being used to check for Pine Processionary Moths, which are an increasing problem in France.

My host tells me they are traps for the same, because once they get hold of a tree it's done for. (which explains why the full ones had black stuff in them - a bit like our fly / wasp traps at home)

They had a tree on the property here which had to be felled after an infestation

 

[mybike]

Correct. By the look of it being used to check for Pine Processionary Moths, which are an increasing problem in France.

Can we have some of them for the neighbour's leylandii?