In my experience, insects in the tent at night were not a problem - just keep the mesh doors zipped up at all times. For tsetses the Skin So Soft Expedition is the only thing that really works. Plan on applying it when you leave in the morning and after lunch. It also works very, very well on mopani bees. I suggest taking 3 to 4 bottles because the PH and camp manager will want one when they see how well it works.
