Since nematodes are so hard to kill,,I thought we could put some things that do,,,,here..Feel free to add if you find others..
Outside>>>
Neem
nematocide: Definition from Answers.com
Spread lime to alkilize soil
Plant marigolds around house,,same for Madagascar vinca (Catharanthus roseus)
Mustard will kill nematodes
mustard will kill nematodes - GardenBanter.co.uk
Indian mustard (Brassica juncea)
They said to plant mustard seed as a green manure, and when it is
4 - 5 cm in height, dig it into the moist soil. The key mechanism
is a substance in the mustard that decomposes into isothiocyanates
and these effectively fumigate the soil and destroy your nematodes
sesame seeds
Tips from a real pest control expert | Nematodes | AsktheExterminator.com
Steam(scuncsi steamer)
Adding chitin to the soil
I dont know if this works IN the body but...............
Isothiocyanates(food)
Isothiocyanates
Avermectins
avermectins: Definition from Answers.com