How do I cut the population? They are small buggars not normal size. I've tried spraying mixure of water vinegar oil & garlic but it doesnt seem to help. There is hay stored in there so I dont really want to use anything toxic. I do have a bottle of stuff for horses. They dont seem to bother the goats who are not in said barn. At this point Im thinking off pulling all feed out of there & just bombing the place. And what would I bomb with? Help please!