[Grubbypaws]

Am I OK to compost my mildew covered courgette plants or is this a foolish idea?
 

[mumofstig]

I do 

[JayG]

I'm lazy and leave mine in place until there's not much more than a few soggy stems left, which I then put on the compost heap!

That is not a great idea, as powdery mildew can overwinter on live or dead plant material - crop rotation is a good idea as mildews tend to be quite crop-specific (I don't do that either, but actually had very little courgette mildew this year.)    

In mitigation, I am nowhere near as careless with knowingly blighted plant materials.