APHIS Establishes a Mexican Fruit Fly (Anastrepha ludens) Quarantine in Laredo, Webb County, Texas

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March 12, 2020



 Subject:      APHIS Establishes a Mexican Fruit Fly (Anastrepha ludens) Quarantine in Laredo, Webb County, Texas


To:                   State and Territory Agricultural Regulatory Officials


Effective March 3, 2020, the Animal and Plant Health Inspection Service (APHIS) and the Texas Department of Agriculture (TDA) established a Mexican fruit fly (Anastrepha ludens or Mexfly) quarantine in a residential area of Laredo, Webb County, Texas. APHIS is applying safeguarding measures and restrictions on the interstate movement or entry into foreign trade of regulated articles from this area.


We are taking this action because APHIS confirmed five female Mexflies between December 31, 2019, and February 27, 2020, within a three-mile radius during the period of one lifecycle in Laredo, Texas. APHIS, in conjunction with TDA, is responding to this confirmed detection with the establishment of a new quarantine area, which encompasses approximately 76.6 square miles of Laredo, Webb County. There is no commercial citrus, and there are no packing sheds within the quarantine area. APHIS is working with TDA to respond to this detection following program survey and treatment protocols. This action is necessary to prevent the spread of Mexfly to non-infested areas of the United States.


The following website describes the new quarantine area, as well as all the current federal fruit fly quarantine areas:




For additional information on the Mexfly quarantine area, please contact National Fruit Fly Policy Manager, Richard Johnson, at 301-851-2109.




Osama El-Lissy

Deputy Administrator

Plant Protection and Quarantine