In 1982, Chile imported European bumblebees to pollinate crops; the invaders crossed into Argentina, spread through Patagonia, and pushed its only native bumblebee toward regional extinction

What began as a farming fix in central Chile has, over four decades, reshaped pollinator communities across southern South America. Approximately 300 queens of Bombus ruderatus were introduced into central Chile in 1982-1983 from the New Zealand population to increase the yield of red clover seeds.

Raccontata datimesofindia.indiatimes.com