They beans will be good for only a limited time as they turn more yellow. Seems the deer tend to stay away from them then. This is also a time when the acorns should be dropping. Not sure how up to date your arial photo is, but what I see are some pine thickets scattered in among some hard woods. Find the oaks that are producing and look for sign. The deer seem to prefer these to either corn or beans. If I am reading the arial wrong then I would hunt the beans till early October up to say the 10th, then switch to the corn field.