I suggest you check out the PAN network,

The site is likely to contain info on permitted pest/herbicides &
suggest alternatives...


http://www.pan-uk.org/

J

wrote:

Dear All,
In the past many of the manufacturers produced fold-out lookup
charts for the home gardening market with illustrations of
diseased/chewed plants, the pest/fungus responsible and their product
for treating it. These were rather useful, not least as list of what
chemicals were available. Does anyone know if any of the manufacturers
still publish such charts?

Cheers.
Tom.
Gemini Bioscapes
Plants & more on Ebay
http://tinyurl.com/hi6g