LATE SUMMER AND EARLY FALL are primetime for Epizootic Hemorrhagic Disease (EHD) across the whitetail’s range. This viral disease, spread by biting midges that breed in stagnant water, can cause massive local or regional deer die-offs and is known to be particularly lethal for mature bucks, making it a particular concern among hunters.
EHD outbreaks are especially prevalent during prolonged drought periods, as hot, dry conditions result in more warm, shallow, stagnant bodies of water with exposed areas of mud — the perfect breeding environment for midges. The dry weather also limits water sources, forcing deer to congregate around the water that remains, making them highly susceptible to midge bites and EHD infection. Mature bucks are particularly vulnerable in late summer because the biting midges are attracted to the velvet-covered,…