I'm pretty sure the bugs are blister beetles although not positive. I got a bite on my hand around the time we started feeding this alfalfa which is fairly similar to the photos I've seen on the web of blister beetle sores.
I don't really have a lot of options short of going out of state as far as suppliers go. We don't feed a lot of alfalfa to begin with (its more of a garnish) so its no big deal to stop.
Question -are blister beetles usually only a problem in alfalfa hay? Most the stuff I've read on the web leans towards this. Also, the few I've seen over the years have been in alfalfa.
I feed bermuda as my horses primary feed. Should I be worried about blister beetles getting in the bermuda? I haven't seen any yet, but...