I think the reason my field pumpkin was slowing down was because it was hanging so the vine was pressed against the trellis restricting nutrient flow so I removed the trellis and lowered the pumpkin. Now growth went from 1.2 cm circ per day on a warm sunny day to 1.8 on a cold rainy one. I name my pumpkins on dap 20 but since I'm gone from dap 18-25 I'll name it tomorrow dap 18