maggot grub of fly In March this year , a vet found a cow dead in a bog and sheep infested with maggots . He was not gone long but returned with a large piece of tree-bark on which was a writhing heap of fat white maggots grub used for bait in fishing Other types of bait , such as maggots and lug worms , remain standard-rated . He threw in a bucket of groundbait , a pint of maggots , and fished all night without a bite . maggot fishing fishing with maggots for bait The fish were well and truly on the stuff , usually on this lake to get daytime bites you have to resort to maggot fishing to achieve any type of result . maggot therapy treatment which uses maggots to clean wounds A bigger follow-up UK trial on the efficacy of maggot therapy is currently waiting Medical Research Council funding approval .