Christine Chapman

Poison ivy causes allergic contact dermatitis in approximately 85% of humans who encounter it. It spreads with extraordinary efficiency along field edges, roadsides, and disturbed ground. Chemical control requires repeated application. Mechanical removal needs full protective gear and specialist disposal: the dead plant stays irritant for years. The goat is immune. Completely. Goats lack the immune sensitivity to urushiol that makes poison ivy dangerous to humans. The goat eats it efficiently, repeatedly, without distress, and with visible enthusiasm given that it considers poison ivy a perfectly adequate lunch. In the United States, there is an established rental market for goat herds contracted specifically to clear poison ivy from properties, parks, and conservation sites. The goats arrive. The goats eat. The goats move on. No chemicals. No protective suits. No specialist disposal. The goat is also immune to poison oak and poison sumac: the entire urushiol-producing plant family. The goat was never bothered. Not once.