I have big beautiful healthy bright green plants so I don't think that it's vine borers, but my small zukes and yellow squash have been rotting on the vine. Today I went out to find my biggest, healthiest yellow squash mushy and leaking milky water. Upon inspection I found several small holes (pinhole sized) in the fruit. I spoke to a man at the farmer's market just yesterday before having discovered the holes and he said it might be melon flies. Does this sound like what it would be? How do I save my babies?