Pioneer's Optimum AcreMax 1 on track in US
DuPont seed subsidiary Pioneer Hi-Bred International’s genetically modified insect-resistant Optimum AcreMax 1 maize remains on course for US introduction this year, subject to approval. The system combines DuPont/ Dow AgroSciences’ Herculex XTRA and Herculex 1 maize seed in the same bag to reduce the need for a refuge for corn rootworm ( Diabrotica spp) control ( Agrow No 539, p 23). Pioneer is seeking to reduce the refuge requirement from 20% to 2-5%. The EPA’s FIFRA Scientific Advisory Panel has scheduled a three-day meeting in February to address the “refuge in the bag” concept.