I am in the UK but we also struggled with powdery mildew a bit on our courgettes (zucchini) and squashes this year. We have standard compost piles but just invested in a new hot composter bin and I have decided to go with hot composting for the plants with mildew.
It's our first year with a garden and has been a real learning curve - I read that plants showing mildew should have infected leaves cut off and disposed of right away, but I was too slow and it spread. I did have some small success using milk spray just to keep it somewhat under control but next year I will have to be more proactive about it!
My parents also gave us a wormery they don't use but we've not set it up yet. Looking forward to trying that out too.
It's our first year with a garden and has been a real learning curve - I read that plants showing mildew should have infected leaves cut off and disposed of right away, but I was too slow and it spread. I did have some small success using milk spray just to keep it somewhat under control but next year I will have to be more proactive about it!
My parents also gave us a wormery they don't use but we've not set it up yet. Looking forward to trying that out too.