I know they are... but it depends on the ground you pull them from. Do you use any (ANY) chemicals in your yard? If you don't I do not see a problem in plucking them out, giving a good rinse and chucking them in. I did it once before with an earthworm, but them I thought of the fertilizers that get used in it... and I stopped. Luckily, nothing happened
yeah, i got it from the unfertilized portion of the lawn under a pool tarp full of mosqito larvae, but are too small to catch for my fish to eat. ill tell u how it goes.
I use them, though I don’t like killing and cutting them up. I put them in a damp container with air holes for a day, the food in them passes through so they are cleaner. I wash them in a net I cut them up into bite size for the fish. The fish love them. I throw organic kitchen and garden scraps in a big flowerpot and the worms live off the food.