On Wed, 13 Mar 2013 08:02:11 +0000, Chris Hogg wrote:

But presumably not effective against ash dieback (Chalara fraxinea)?

I think it is meant to be effective:

http://www3.imperial.ac.uk/newsandev...e/newssummary/
news_7-11-2012-15-10-0

Although probably only partially so, and multiple treatments over several
years would likely be necessary.

I didn't see it mentioned in the article, but I imagine there is a water
table issue with dispersing large amounts of copper into the environment.



--
Gardening in Lower Normandy