NORTH IOWA OUTDOORS: Monarch Butterfly Numbers Dwindling Necessitating Local Tagging

 While the dwindling monarch butterfly population is showing signs of bouncing back, it still is in need of help in Iowa.The monarch caterpillar’s favorite food is milkweed, which once grew in abundance in Iowa and other Midwestern states, sometimes hurting corn crop yields. Herbicides perhaps worked too well. and now milkweed is in short supply. […]