ESA Southeastern Branch Meeting Online Program

23 Determining yield loss from Mexican rice borer (Lepidoptera: Crambidae) injury in conventional and bioenergy crops

Monday, March 4, 2013: 10:42 AM
Capitol Room (Hilton Baton Rouge)
M.T. VanWeelden , Department of Entomology, LSU AgCenter, Baton Rouge, LA
B.E. Wilson , Department of Entomology, LSU AgCenter, Baton Rouge, LA
J.M. Beuzelin , Dean Lee Research Station, LSU AgCenter, Alexandria, LA
T.E. Reagan , Department of Entomology, LSU AgCenter, Baton Rouge, LA
MO. Way , Texas AGRILife Research Center at Beaumont, Texas A&M University, Beaumont, TX
An experiment was conducted in the summer of 2012 at the Texas A&M AgriLife Center at Beaumont, TX to assess yield loss from the Mexican rice borer (MRB), Eoreuma loftini (Dyar), in conventional and bioenergy cultivars of sugarcane and sorghum.  Cultivars were subjected to four MRB densities, ranging from pest-free controls to highly enhanced infestations.  Results showed an increase in MRB-related injury in conjunction with higher infestation levels.  Higher densities of MRBs reduced stalk wet weight and sucrose content (Brix) across all cultivars.  This is the first documentation of yield loss attributed to the MRB in bioenergy crops.
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