Will ortho poison ivy spray killer harm chickens?

Yes, Ortho Poison Ivy spray can harm chickens if ingested or if they come into direct contact with treated surfaces. The active ingredients in many herbicides can be toxic to birds and other wildlife. It is essential to keep chickens away from areas that have been recently sprayed until the product has dried completely and any potential residues have dissipated. Always consult the product label for specific safety information regarding pets and livestock.