Abstract:In 2015, Brazil was the contry with the second largest área planted with genetically modified crops getting behind the United States. In 2013, in Brazilian Cerrado region of corn producers reported that the control efficacy of Bt corn expressing the Cry1F toxin decreased significantly, forcing them to use chemicals to reduce the damage caused by S. frugiperda. A colony of S. frugiperda was established from individuals collected in 2013 from Cry1Fa corn plants (Sf1) in Braziland shown to have at least more than… Show more
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