I don't know about Viburnum, Vic, but I grew a Euonymus Silver Queen up a cream rendered house wall. It used to be covered in blue bottles which flew up in swarms every time anyone walked past.

Eventually, lovely though the Euonymus was, I had to dig it out. Sadly, you may have to do the same.

I think that's what it will come to, I'm not looking forward to being in a fly invested garden.

Strange. We have this particular Viburnum and I cannot say we have ever noticed a huge number of flies on it. Now if it was Golden Rod (Solidago cvs.) it would be a different thing altogether.

It's the one plant I have added recently that I have never had before Owdboggy, I'm sure I've read that some people had problems with snowball viburnum. Only other thing I've changed recently is Chicken Pellets, I bought a tub from local supermarket could it be that? We get flies in the garden everyone does! but never this amount, I've had a look around nothing dead no bad smells either so I'm stumped.

Well, the chicken pellets certainly attracted the flies when I used to sell them at work! I imagine that the tub has a lid, though, which should be better than the vented plastic bags that we sold! If the flies are just showing up the day after you use the pellets, and gradually move off over the next week or so, it might be the pellets.

Sounds like a possibility. Read somewhere about someone who opened an old tub of them and found it was alive with maggots. Certainly the huge heap of Chicken shed bedding etc. which is in the field next to us is very much infested with fly larva of all kinds.

Think you are on the right track with the chicken pellets, I've been online reading up and it seems that it could well be them, so ill stop using them for a few weeks and see what happens, Stick with liquid fertilizers for the present, good news is the viburnum has a stay of execution lol, thank you all for your help very much appreciated.