"...........Do you live anywhere near a farm where they might have sprayed
herbicides on a windy day ? ........."

And what about the council spraying verges, pavements etc, they let loose
with a lot of weedkillers as well, probably not as responsible as farmers,
as they get sent out to spray for the day, have to do the job and cant stop
just because of a bit of wind.
Your average farmer is much more responsible.... after all he has to pay for
the spray , and for any damage it does.

--
David Hill
Abacus nurseries
www.abacus-nurseries.co.uk