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ARS Home » Southeast Area » Tifton, Georgia » Crop Genetics and Breeding Research » Research » Publications at this Location » Publication #256790

Title: Fall armyworm resistance and natural enemy attraction in elite GEM inbred lines

Author
item Ni, Xinzhi
item XU, WENWEI - Texas A&M University
item Blanco, Michael
item RUBERSON, JOHN - University Of Georgia
item Cottrell, Ted
item Wilson, Jeffrey - Jeff
item Williams, William - Paul

Submitted to: Entomological Society of America Proceedings
Publication Type: Abstract Only
Publication Acceptance Date: 7/1/2010
Publication Date: 12/15/2010
Citation: Ni, X., Xu, W., Blanco, M.H., Ruberson, J.R., Cottrell, T.E., Wilson, J.P., Williams, W.P. 2010. Fall armyworm resistance and natural enemy attraction in elite GEM inbred lines. Entomological Society of America Abstract no. 0934 http://esa.confex.com/esa/2010/webprogram/Paper51168.html.

Interpretive Summary: not required

Technical Abstract: Multiple foliar- and ear-feeding insects are important impediments for corn production in the southern US. After being assessed for ear-feeding insect resistance in 2007 and 2008, 20 elite inbred lines from the Germplasm Enhancement of Maize (GEM) Project were evaluated for whorl-feeding fall armyworm [Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae)] resistance in 2009 and 2010. Both S. frugiperda injury ratings at 7 and 14d after the initial infestation at 6-leaf stage were compared. In addition, natural enemy abundance and diversity at 7d after the infestation were also compared among the 20 inbred lines. The correlation between natural enemy profiles and levels of S. frugiperda injury ratings on corn plants were also discussed. The best inbred lines with the least S. frugiperda injury and/or the most natural enemy attractiveness were identified.