Hello

We have just moved into a new house.

Our property borders a farmyard and along one edge grows some sort of evergreen conifer hedge about 7 feet tall and 30 feet long...some parts of it are as green as could be and has a lot of new season growth showing, but large parts of it...appears to be if not dead, then certainly unwell...it is all brown and shows no new growth this season.

Now I know that the inside areas of connifers, the parts that get no sun, are often brown and look dead, but this hedge gets full sunlight all day, and every scrap of the dead looking hedge, including the outside branches that get the sun is brown with no new growth at all this season

I wonder what has caused it (run off from farmyard?) and how to breath new life into it.