[mobertol]

I didn't know about silver birch causing these problems -there are quite a lot round where I live. During the pollen season I have to double up my asthma medication and always put it down to the poplar trees which are heavily planted in the north of Italy -this has made me think again! My son also suffers very badly with hay-fever every year. Allergy related problems are a growing problem but I would hate to see trees being chopped down...