In this episode, we find out there are lots of caterpillars in our Catalpa tree. Catalpaworm Larvae also known as: Catalpa Sphinx Moth larva. Catalpa worms are sometimes used as fishing bait. They are an excellent bait for largemouth bass and catfish and some dedicated fishermen have been known to drive many miles or plant small groves of catalpa trees in order to secure a ready supply of catalpa worms. (8:31 Min)