You want them to get use to melon so they will eat the pumpkins coming up.
Try to obtain pumpkins if you don't grow them. Seeds are natural anti parasite medicine.
I'm trying to grow pumpkins, but they're doing the same exact thing as last year. They're blooming, then the flowers fall off leaving a blank stem. I bought new seeds this year thinking maybe it was because I was using old seeds. Last year all squash related plants were a bust. Two years ago, I had incredible squash plants and ended up with more than we could consume. I don't know what changed - other than I didn't plant as many varieties as I had that year I had too much. This year, because I was so busy with the chickens, I only planted pumpkins, no squash.