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Official Pest Reports

Official Pest Reports are provided by National Plant Protection Organizations within the NAPPO region. These Pest Reports are intended to comply with the International Plant Protection Convention's Standard on Pest Reporting, endorsed by the Interim Commission on Phytosanitary Measures in March 2002.

USA Flag Mexican fruit fly, Anastrepha ludens, eradicated in Texas, US
Date posted: 10/22/2012
Contact: John Stewart, APHIS Exotic Fruit Fly Manager, Fruit Fly Exclusion and Detection Programs, at (919) 855-7426
Effective September 26, 2012, the Animal and Plant Health Inspection Service (APHIS) removed the last Mexican fruit fly (Mexfly) regulated area from the Lower Rio Grande Valley of Texas. As a result, there are no remaining Mexfly-regulated areas in Texas.

On March 9, 2012, APHIS designated portions of Cameron County as a fruit fly-regulated area restricting the interstate movement of regulated articles from that area in order to prevent the spread of Mexfly to noninfested areas of the United States. Subsequently, additional infestations were detected in Cameron, Hidalgo, and Willacy counties in Texas that ultimately led to APHIS establishing regulated areas in those counties totaling 1,062 square miles. Since then, APHIS has worked cooperatively with the Texas Department of Agriculture and the Texas Citrus Industry to eradicate the transient Mexfly populations through various control actions, including the application of sterile insect technique by releasing sterile male Mexflies in the area surrounding the detection sites, fruit removal from infested areas, and using foliar bait sprays near the detection sites.

Deregulation was concluded after sufficient time passed without finding additional Mexflies in those areas. Specifically, an intensified fruit fly trap surveillance system was deployed and monitored for three life cycles and calculated through a modeling process specific for Mexfly. Accordingly, on August 7, 2012, APHIS began removing the regulated areas with the last area of Weslaco/San Benito removed on September 26, 2012.

This action is reflected on the following designated website, which contains a description of all the current Federal fruit fly regulated areas:

http://www.aphis.usda.gov/plant_health/plant_pest_info/fruit_flies/index.shtml

Under IPPC Standards, Anastrepha ludens is considered to be a pest that is now absent: pest eradicated in the United States.

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