Wilson B E, Hardy T N, Beuzelin J M, VanWeelden M T, Reagan T E, Miller R, Meaux J, Stout M J, Carlton C E
Department of Entomology, Louisiana State University Agricultural Center, 404 Life Science Bldg., Baton Rouge, LA 70803.
Louisiana Department of Agriculture and Forestry, 5825 Florida Blvd., Baton Rouge, LA 70806.
Environ Entomol. 2015 Jun;44(3):757-66. doi: 10.1093/ee/nvv016. Epub 2015 Mar 21.
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.
墨西哥螟蛉，Eoreuma loftini (Dyar)（鳞翅目：草螟科），是美国墨西哥湾沿岸地区甘蔗（甘蔗属）、水稻（稻属）及其他禾本科作物的一种入侵性害虫。2009年至2013年期间，使用含有墨西哥螟蛉雌性性信息素的诱捕器记录了该害虫在路易斯安那州西南部七个教区甘蔗、水稻及非作物寄主附近的定殖和分布情况。另外的田间调查记录了商业甘蔗和水稻中的幼虫侵害情况。2008年首次发现该害虫后，2009年路易斯安那州未检测到墨西哥螟蛉，2010年仅捕获到两只成虫。诱捕记录显示其分布范围在2011年扩展至卡梅伦、博勒加德和杰斐逊·戴维斯教区，2013年扩展至艾伦、阿卡迪亚和 Vermilion 教区。在本研究过程中，墨西哥螟蛉的分布范围向东扩展至距得克萨斯州边界120公里的路易斯安那州（约22公里/年）。幼虫侵害调查提供了墨西哥螟蛉在路易斯安那州侵害水稻和甘蔗的首个记录。在卡尔卡苏教区未进行杀虫种子处理种植的水稻中，墨西哥螟蛉的侵害达到了有害水平。
