entsocamerica , New on Entomology Today: Nursery-grown milkweed is in high demand amid consumer interest in monarch butterfly conservation. However, a variety of insecticides used to control aphids in nurseries can linger for weeks in milkweed plants at levels high enough to kill monarchs, a new study shows. #entomology #insects #MonarchButterfly https://entomologytoday.org/2024/07/09/insecticide-residues-milkweed-harm-monarch-butterflies/