Drones, mites, electromagnetic energy — Wyoming’s war on invasives

Like many states in the West, Wyoming is experiencing a troubling trend: invasive annual grasses are invading healthy sagebrush range. To help pinpoint these infestations before they become too large to eradicate, managers are turning to innovative drone technology that can detect the unique electromagnetic energy that plants produce, including invasives like medusahead, ventenata and cheatgrass.