This is probably just an algae growing on the branches. It usually shows that the plant is not growing strongly, or is in shade, or just that the local air is clean. It isn't necessary to treat it although it would wash off the parts that you could reach. ( you might need a lager for the parts that others can't reach!! LOL).

LOL Volunteer!!!

I agree. There's no need to treat anything unless it's actually having a detrimental effect on the tree, which I'm sure it isn't.

my acer tree has a similer thing growing on it but its fine so dont mend something that isnt broken i guess . lots of bigger plants/trees are hosts to smaller ones mistletoe for egsample not that there all harmless but i believe volunteer and sid the dolphin are right in this case .

Eeeeeeek! Eeeeeeeeek!

whats up dolphin girl ?

That was dolphin for "if it aint broke, don't mend it" ;-)

you know i thaught so sid i just wasnt sure lol xx

Yeah, it's handy having a second language lol

eeeeek mc eeeeeek thats what a scotch dolphin sounds like sid .

i bet you didnt know that lol.

No, but I do know what a Scouse dolphin sounds like.

Eeeeeeeeek! Why-I-Man! Eeeeeeeeeeeek! (They're quite rare tho).

or a welsh one who i feal are rarer than that eeeeeeeeeeeek isnt it eeeeeeeeeek and rarest of all the dolphin the royal dolphin my eeeeeeeeeeeeeeek and i lol or the irish dolphin you can actualy tell them without them making a noise,they swim backwards and flap there heads lol.

PMSL......I think we're in danger of offending everyone LOL LOL

Are you feeling better now that spring is here and the clocks have moved?

could you tell sid lol . surly everyone likes to smile its good for you.