Official Pest Report
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.

Anastrepha ludens (Mexican Fruit Fly): APHIS Establishes Quarantines in Hargill and Lyford, Willacy County, Texas, and Expands the Quarantine Area in Cameron, Hidalgo, and Willacy Counties, Texas

Country:
United States
Title:

Anastrepha ludens (Mexican Fruit Fly): APHIS Establishes Quarantines in Hargill and Lyford, Willacy County, Texas, and Expands the Quarantine Area in Cameron, Hidalgo, and Willacy Counties, Texas

Contact:
Richard Johnson, Fruit Fly National Policy Manager, at (301) 851-2109 or richard.n.johnson@usda.gov
Report:

Establishment of Lyford, Willacy County Quarantine.

On April 29, 2022, the USDA’s 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 Lyford, Willacy County, Texas. APHIS and TDA established the Lyford quarantine following the confirmed detection of a mature mated female Mexfly from a trap in a sweet orange tree in a residential area. The Lyford quarantine encompassed 113.85 square miles with 45.2 acres of commercial citrus.

Expansion of Quarantine Areas.

On April 29, APHIS and TDA expanded two Cameron County, Texas, quarantine areas following the confirmed detections of adult Mexflies from traps and larvae from fruit cuttings from various citrus trees in residential areas and citrus groves. The Brownsville quarantine area expanded from 132.2 sq. mi. to 153.74 sq. mi.; there was no change in the affected commercial citrus acreage. The Harlingen quarantine area expanded from 190.4 sq. mi. to 245.02 sq. mi.; the affected citrus acreage increased from 1,769.9 acres to 1,938.6 acres.

On May 12, APHIS and TDA further expanded the Lyford, Willacy County, Texas, quarantine area following the confirmed detection of an immature Mexfly from a sour orange at a residence in Sebastian, Willacy County. This expansion caused the Harlingen and Lyford quarantine areas to merge, which created the Harlingen/Lyford quarantine in Cameron and Willacy Counties.

On May 27, APHIS and TDA merged the Harlingen/Lyford quarantine with the Weslaco, Hidalgo County, Texas, quarantine area following the confirmed detection of a mated female Mexfly from a trap in a citrus tree in a residential area. The Harlingen/Lyford/Weslaco quarantine encompasses 506.6 sq. mi with 3,314.7 acres of commercial citrus in Cameron, Hidalgo, and Willacy Counties.

Establishment of Hargill, Willacy County Quarantine.

On May 27, 2022, APHIS and TDA established a Mexfly quarantine in Hargill, Willacy County, Texas, following the confirmed detection of a mature mated female Mexfly from a trap in a sweet orange tree in a residential area and two larvae in a nearby commercial citrus grove. The Hargill quarantine encompasses 91.12 sq. mi. with 2,616.3 acres of commercial citrus.

APHIS works cooperatively with TDA to eradicate transient Mexfly populations through various control actions per program protocols and in applying safeguarding measures and restrictions on the interstate movement or entry into foreign trade of regulated articles from these areas. These actions are necessary to prevent the spread of Mexfly to non-infested areas of the United States.

The following website contains a description of all the current Federal fruit fly quarantine areas:

http://www.aphis.usda.gov/plant-health/ff-quarantine

Under IPPC standards, Anastrepha ludens is a transient pest under eradication that is present only in some areas in Texas. This species is not widely distributed and is under official control in the United States.

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