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1229 Fall armyworm survivorship and injury on field corn expressing Cry1F and Cry1Ab

Wednesday, November 19, 2008: 1:29 PM
Room A9, First Floor (Reno-Sparks Convention Center)
Jarrod T. Hardke , Department of Entomology, Louisiana State University AgCenter, Baton Rouge, LA
B. Rogers Leonard , LAES Administration, Louisiana State University, Baton Rouge, LA
Karla D. Emfinger , Department of Entomology, Louisiana State University Agricultural Center, Winnsboro, LA
Joshua H. Temple , Department of Entomology, Louisiana State University Agricultural Center, Baton Rouge, LA
Latha Bommireddy , Department of Entomology, Louisiana State University Agricultural Center, Baton Rouge, LA
Keith A. Fontenot , Louisiana State University Agricultural Center, Ville Platte, LA
Fall armyworm (second instars) were artificially inoculated on V6-V10 stage field corn, Zea mays L. plants transformed to express Cry1F (Herculex), or Cry1Ab (YieldGard) proteins. These Bt plants were evaluated visually for leaf tissue injury 14 d after infestation and were compared to infestations on a conventional non-Bt variety. Significant effects were observed for leaf injury among the Bt and not-Bt field corn lines. In no-choice laboratory assays, third instars of fall armyworm were offered fresh corn leaf tissue from one of the three corn lines or a meridic diet. Survivorship and development of insects on the transgenic corn lines was significantly different from those on the non-Bt corn line.

doi: 10.1603/ICE.2016.38278

See more of: P-IE6 Ten-Minute Papers, Plant-Insect Ecosystems
See more of: Ten Minute Paper (TMP) Oral
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