Does anyone want to share some beneficial nematodes

I'm hoping to buy some beneficial nematodes soon hoping they'll eat any root maggots that might infest some carrots/radishes, etc. that I intend to plant soon. One package is too many for my plot so I was wondering if anyone wants to share. I can get them from March Biological for $20 that would cover two gardens ($10 for each of us)....I checked at Portland Nursery last week and they were out so I don't know their quantities/prices yet...Melinda