Joe,
Tough subject, from a number of angles. I'll offer one man's experience and you can take it for what it's worth.
I "grew up" hunting in Presque Isle county, in Michigan. I can't say that we killed hundreds of deer but, that's hunting.
Fast forward to 1991. At the time, I wasn't bowhunting, but that's neither here, nor there. I shot a doe. We took it in for processing (hell, I'd have been lucky to tie my shoes at that point in my life, let alone process a deer). Anyhow, we dropped it at the processor and figured it was "done".
Yeah, done. The processor called us and asked us to come out. He had "issues" with what he was encountering while he butchered the meat. Without going into great detail and dragging out the story, I believe we had encountered one of the early cases of tuberculous disease in deer, in Michigan's northern Lower Peninsula.
Yeah, yeah, yeah, easy to say. The processor did not just call us. He called the DNR. To be short and blunt, the DNR was puzzled by what they'd seen. The deer / carcass was ultimately destroyed after the DNR had a chance to look at things and "take samples". I am a health professional and have some level of understanding of disease in man, if not animals.
My biggest concern with any baiting is concentrating game animals at "feeding areas" and increasing the risk of perpetuating communicable diseases. This is not an entirely natural phenomenon (concentrating wildlife around feeding piles). Yes, deer will congregate at apple trees and things like that. But, those events don't last for days / weeks / months on end. They are discreet, natural concentrations of wildlife that don't persist as long as a bait pile could.
What I've presented is nothing more than anecdotal evidence. It only relates to potential (not proven) effects of baiting on deer (assuming that transmission of tuberculous illness happens in close contact, such as that which may occur at a bait pile). That does not prove anything.
Despite that, I'm reluctant to advocate baiting as part of deer hunting. Also, I believe that there are certain situations where baiting may be a relatively important tool in resource management.
A nasty, icky, difficult and painful topic in hunting / wildlife management. I'm gonna go have a beer.
homebru