How many traps are to many in a 50 acre field? I've trapped this same field for many years and have caught coyotes in three different spots. So if I put 2 traps at each spot would that be too much? If not should I use different lures and bait at each place?

I trap a 47ac place and there are times I have as many as 8 out.

Put traps where you think you will catch a coyote and don't worry about the total number

Depends on the character of the field.