Stingless bees in the Colombian Andes are adapting to a derivative of the ubiquitous insecticide ivermectin, which the bees ingest along with pollen from pasture flowers, according to a new study.

Potential route of avermectin exposure in stingless bee colonies located in livestock dominated landscapes. When ivermectin is applied to cattle to treat endo and ectoparasites, residues end up in the ...