Seems to be a lot of that about this year - I can only conclude it is the
weather.
My tree and the one at the end of the road have gone patchy yellow, though
not
totally as yours. I take it you are not on the west coast of the UK?

Andy

"chaz" wrote in message
...
one of my laburnum's leaves have all gone yellow, the other two (very near
to this one) seem normal the area is watered when needed so i presume it
cant be lack of water? any ideas? are they prone to something that would
cause this?

chaz