By Lynn L. Bergeson On May 22, 2020, EPA’s Office of Pesticide Programs (OPP) announced the opening of a 15-day comment period on its proposal to register a new active ingredient and biopesticide product. The biopesticide product, PHC-91398, would contain Ea peptide 91398, the new active ingredient that was derived from naturally occurring bacterium and induces natural plant defenses. The plant’s reaction to the peptide “activates a hypersensitive response in treated plants,...
