KK wrote:
Can someone advise me on a fungicide for edible plants (courgettes). My
plants suffer badly from powdery mildew (or at least they did last year).
All the spray fungicides in the shops seem to be systemic & cannot be used
on vegetables etc.


I think there are varieties that are resistant to powdery mildew. They
sometimes state this on labels from garden centres and on seed packets
e.g. from mr fothergill's:
Cucumber 'Marketmore' (code number 715). I have seen resistant
varieteies from other seed supliers as well.

Des

Help please ?

Thanks

KK