on the pumpkins - - you might try a bit of shade over them - - even if it is only that burlap cloth that is sold. I had them
growing a couple years back had a little trouble from the heat until I used some burlap cloth over them - - then the jack rabbits and cottontails had a feast - - never did get anything - - now, I've learned to put some chicken wire around things that are going to attract the bunnies but that I want for "me". I set other things out that they can share <s>.
Last year, tried watermelon - got a couple of small ones - - but I did not shade them.
Jon