Darren Wallis, who directed public affairs for Monsanto, has moved to Bayer as North American VP and head of communications for its CropScience operation.

Wallis, based in Research Triangle Park, NC, heads all internal and external corporate communications for the division, which traces its roots back to 1924 and offered the first systemic insecticide in 1951.

The business has faced scrutiny for an alleged link of a Bayer-made pesticide to the decline of honey bees in North America and Europe. BCS established a Bee Center in 2013 near its North Carolina base to study the insects and promote bee health.

Wallis spent the past eight years at Monsanto after starting out in the agency realm. Wallis was a senior VP at FleishmanHillard and VP for Weber Shandwick in the Midwest.

Ray Kerins is head of communications and government affairs for Bayer US.

Bayer is based in Germany.