so I have 14 squash plants growing. 8 butternut and 6 spaghetti. soil is same fertilizer is same. same everything. I have 42 spaghetti squash growing . anywhere from 5 inches around to 7 inches around. all healthy. the butternut squash are all rotting off. I have 1 healthy and have had 30 die. the leaves look extremely healthy no signs of anything wrong. do butternut just need more fertilizer ?