Tom Crane wrote
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?

Seeing as there are very few chemicals now allowed to be used by us
gardeners I wouldn't think it would be worth their while. Might be something
for professional growers/ farmers though.

--
Regards
Bob Hobden