In Oregon they are everywhere. I have fed slings sections of worms without any trouble. Its kinda fun to watch too cause no matter where the T gets them the whole rest of the body moves for a long while after the T starts feeding.
They are easy to keep once you collect some to so that is a big plus.
I personally have never fed my Ts a earth worm, but I can't see any problem with it unless you get them from a yard that has been sprayed with either pesticides or some form of weed killer. As long as you get them from some "natural" area, then they should be fine. Although parasites could be another problem...
Not to scoop my article on the subject in ARACHNOCULTURE 2(4), but - yes - absolutely - nightcrawlers/earthworms are great prey items, especially for tarantulas such as Theraphosa, Pamphobeteus, Megaphobema, Xenesthis, etc.
I thought I would just pick up on an older thread rather than start a new one. While at Arachnocon this year Michael Jacobi talked about his trip to Costa Rica and saw tarantulas feeding in their lairs. The food of choice was earthworms. Bill Korinek also recommended them.
I went to the local bait shop today and bought a dozen large night crawlers. After letting a few warm up (they were in a mini cooler in the fridge) I fed several of my Tarantulas. 4 of the 5 tarantulas I tried ate worms or partial parts almost immediately. My female P. platyomma (a big girl) especially seemed to relish this large prey item instead of having to ball up several smaller crickets. :drool: A much smaller B. vagans took an end and then over time felt along the entire length of the worm. When it found the other end it snagged it too and then stuffed it in a wad underneath it.
Price wise they are better than crickets for the amount of food and the worm parts move for awhile which attracts strikes. They also are odorless and keep well in the fridge. Do you think a cold earthworm gives the T brainfreeze like ice cream does us? Thanks for the info. guys. A nice addition to the menu!