The soil seems a bit odd. I wouldn't use them either for fear of fertilizers in the soil. The worms eat vegetation, so there really isn't much for them to feed on in the soil. The packaging in soil seems similar to fish bait, as earth worms and grubs, typical live fish bait, are kept in soil. I think someone could have gotten confused a bit and put the meal worms in dirt as that's how other common worms are stored.