Bout to start from scratch.

Using an e collar on a trashing dog is the quickest way I think to break a dog from trashing. I know you said you don't have one but maybe you could borrow one or pick one up pretty cheap some where. The little cheap ones work fine for these situations because normally you are pretty close to them if you know they are trashing on an armadillo. Just use your brain when using the shock collar. I do believe a dog can be ruined with one so be sure that you use it at that exact moment when they are in the wrong so that there is no mixed messages to the dog at all. My best dog was baying cattle really bad. I beat and banged and whooped with no ground gained. I put a collar on him and about two times of shocking him while in the act of baying cattle, he was done and will not even acknowledge them now. Just my two cents...Good luck bud