title: Expansion of the Mexican Rice Borer (Lepidoptera: Crambidae) into Rice and Sugarcane in Louisiana.
abstract: The Mexican rice borer, Eoreuma loftini (Dyar) (Lepidoptera: Crambidae), is an invasive pest of sugarcane, Saccharum spp., rice, Oryza sativa L., and other graminaceous crops in the Gulf Coast region of the United States. Traps baited with E. loftini female sex pheromones were used to document establishment and distribution of E. loftini near sugarcane, rice, and noncrop hosts in seven southwest Louisiana parishes from 2009 to 2013. Additional field surveys documented larval infestations in commercial sugarcane and rice. After its initial detection in 2008, no E. loftini were detected in Louisiana in 2009 and only two adults were captured in 2010. Trapping documented range expansion into Cameron, Beauregard, and Jefferson Davis parishes in 2011 and Allen, Acadia, and Vermilion parishes in 2013. During the course of this study, E. loftini expanded its range eastward into Louisiana 120 km from the Texas border (≈22 km/yr). Surveys of larval infestations provided the first record of E. loftini attacking rice and sugarcane in Louisiana. Infestations of E. loftini in rice planted without insecticidal seed treatments in Calcasieu Parish reached damaging levels.
authors: Department of Entomology, Louisiana State University Agricultural Center, 404 Life Science Bldg., Baton Rouge, LA 70803. bwilson@agcenter.lsu.edu.
authors: B E
authors: BE
authors: Wilson
authors: Louisiana Department of Agriculture and Forestry, 5825 Florida Blvd., Baton Rouge, LA 70806.
authors: T N
authors: TN
authors: Hardy
authors: Department of Entomology, Louisiana State University Agricultural Center, 404 Life Science Bldg., Baton Rouge, LA 70803.
authors: J M
authors: JM
authors: Beuzelin
authors: Department of Entomology, Louisiana State University Agricultural Center, 404 Life Science Bldg., Baton Rouge, LA 70803.
authors: M T
authors: MT
authors: VanWeelden
authors: Department of Entomology, Louisiana State University Agricultural Center, 404 Life Science Bldg., Baton Rouge, LA 70803.
authors: T E
authors: TE
authors: Reagan
authors: Louisiana Department of Agriculture and Forestry, 5825 Florida Blvd., Baton Rouge, LA 70806.
authors: R
authors: R
authors: Miller
authors: Calcasieu Parish Extension Office, Louisiana State University Agricultural Center, 7101 Gulf Hwy, Lake Charles, LA 70607.
authors: J
authors: J
authors: Meaux
authors: Department of Entomology, Louisiana State University Agricultural Center, 404 Life Science Bldg., Baton Rouge, LA 70803.
authors: M J
authors: MJ
authors: Stout
authors: Department of Entomology, Louisiana State University Agricultural Center, 404 Life Science Bldg., Baton Rouge, LA 70803.
authors: C E
authors: CE
authors: Carlton
mesh_terms: D063147:Animal Distribution; D000818:Animals; D007300:Insect Control; D058865:Introduced Species; D008145:Louisiana; D008297:Male; D009036:Moths / Q000187:drug effects / Q000502:physiology*; D012275:Oryza / Q000254:growth & development; D010675:Pheromones / Q000494:pharmacology; D031786:Saccharum / Q000254:growth & development; D012724:Sex Attractants / Q000494:pharmacology
chemical_list: D010675:Pheromones; D012724:Sex Attractants; C010411:insect attractants
keywords: Eoreuma loftini; invasive species; monitoring; pheromone trap