Most of the trimming you do now, provided you're not too conservative with your saw-work, will suffice throughout the hunting season. This is good news if you're concerned about any deer, let alone mature bucks, knowing you're in the area. However, due to unchecked weed growth, some of the trimming you do now might need a touch-up in August. Because of this, I typically mark all of my entrance and exit trails with biodegradable flagging tape or reflective markers so I don't waste any time looking for my earlier handiwork. Before a rain shower, I'll don my rubber boots and take a midday stroll just to make sure that my lanes and trails haven't grown over too much. Ideally, I'll do very little work on these return trips, and whatever intrusive olfactory clues I've left behind will wash away during the predicated rain.