Westi wrote:Pa & Peter - it's a naturally occurring treatment so not a chemical as such. To over ride this law you could just try the real willow.
Westi
As far as I am aware If something is to be used as a herbicide, pesticide, Insecticide or any other side, for the treatment of plants etc it needs approval even if it is a 'natural' product, it certainly was the case during the 12 years I was working for a company making treatments for water gardening which came under same rules as normal veg & flower rules