courgette plants with no mildew!

Me too! Although I'm growing a different variety this year so that might help.

I normally plant a second courgette plant at the beginning of July to take over once the first one has succumbed. I have rather a lot of courgettes now!! 

strange as mine have really suffered. In fact I am considering pulling them up already. There is very little green left to be seen although they are still producing one or two.

ditto

My pumpkin and one courgette have mildew very badly.  Pumpkin already gone. The fat baby achocha has a little bit, as do 2 other courgettes.   The Romanesco courgette, the Thelma Sanders sweet potato squash, the Benning's Green Tint patty pan and the yellow courgette are completely free.   All planted out at approx the same time.   No obvious reason for the difference.

The only year I haven't had mildew was last year. It was also the only year that I frequently and regularly watered them into upended 2 litre water bottles that I sunk in next to them when planting.

This year the way they grew made it difficult to access the bottles and I didn't bother. I think I will next year though.

(Incidentally I'm lucky enough to have a decent size veg plot at home, not sure how successful this would be if you had to make a special journey to do it every day).

First year growing courgettes and marrows - No mildew but I have been watering I frequently and regularly watered them into upended 2 litre water bottles that I sunk in next to them when planting as suggested by someone on the forum here.