In message ,
writes
What evidence is there for this?

http://www.telegraph.co.uk/earth/365...uld-be-culled-
to-save-UK-gardens-National-Trust-warns.html

Having spent many hours with a group of conservation volunteers hacking
out rhododendrons in a country park, I can answer this troll with
relish.
They produce a dead zone, and the ground takes years to recover,
according to the park wardens.

They make a great bonfire though, it's a good winter job!
--
Gordon H
Remove "invalid" to reply