"1. How to gather Snakes and Adders to one place. Take one handful of Onion, and ten River Crab-fish, pound them together, and lay it in the places where the Snakes and Adders are, and they will all gather together.
2. To kill Snakes and Adders. Take a large Rhadish, and strike the Adder and Snake with it, and one blow will kill them."
R. W., A Necessary Family-Book (1688)
A simple and elegant technique: lure the snakes with a giant crabcake and then bludgeon them with a radish, Super-Mario-Bros.-style.
From the same book, here's How to Kill Fleas:
"Take an Earthen Platter, that is broad and shallow, fill it half full with Goats Blood, and set the Platter under the Bed, and all the Fleas will come into it like a swarm of Bees. Or take the Blood of a Bear or Badger, and put it under the Bed, as before, and it gathers the Fleas to it, and they die immediately."
From Ask The Past