| discovery and characterization of field resistance to bt maize: spodoptera frugiperda (lepidoptera: noctuidae) in puerto rico. | transgenic maize, zea mays l., event tc1507 produces the cry1f protein to provide protection from feeding by several important lepidopteran pests, including spodoptera frugiperda (j.e. smith) (lepidoptera: noctuidae). reports of reduced field performance against this species in puerto rico were investigated, and laboratory bioassays showed that s. frugiperda collected from the affected area exhibited lower sensitivity to the cry1f protein compared with typical colonies from other regions. the re ... | 2010 | 20857709 |