[mdjlucan]

wots doing this to the big leaves on my butter squash

[Yorkie]

Is it really new damage or has it just got bigger?

I wonder if it was damage caused when the leaves were smaller, which is now obvious because the leaves have grown?

If it's only on parts of the big leaves then I wouldn't worry.

[Trillium]

I had the same thing happen when the leaves were young. As long as its not still doing it, don't worry. The plant is obviously surviving well.