WORM EMERGERS??? I have some experience with them. When I was young, my Dad , Brother and I would crawl on the lawn with flashlights and 'Grab' worms that emerged at night. Some of those worms were uncooperative, cause they pulled back in order not to be used as fish food.
Doug
Last worm emerger I saw came out of an apple that I was eating. Actually, it was only a half-a-worm emerger...