UMinnesota’s CFAN has such a major and its graduates have terrific professional outcomes. Another advantage is that it has generous scholarships for OOS students, which UWisconsin or UIUC don’t have (of course if you’re instate for one of them, definitely apply since they’re standout… but quite expensive from OOS.)
Cornell, of course.
McGill in Canada has such majors on its McDonald campus, also with great outcomes.
Yes, you’ll need to work hard in biology, but it’s not a deal breaker since you won’t take a lot of bio courses (also, a “B” is not equivalent to “struggling”). After all, you’ll be studying agricultural economics/agribusiness, not biology nor agriculture.