Allowing use of two neonicotinoids to combat crop-ruining disease will kill bees and reduce harvests, union says Beekeepers and environmentalists in France have reacted furiously after parliament approved a bill reauthorising two banned pesticides scientists say can poison bees. “There are no words to describe the frustration,” said Carolyn Bouguet, a beekeeper in Essonne, greater Paris. “Bee populations have already been badly compromised by climate change, new parasites and loss of habitat. And now this.”