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Diaprepes Root Weevil

The Diaprepes root weevil (Diaprepes abbreviatus) is a root weevil native to the Caribbean where at least 16 additional species within the genus are known. Diaprepes abbreviatus has a wide host range, attacking about 270 different plants including citrus, sugarcane, vegetables, potatoes, woody field-grown ornamentals, sweet potatoes, papaya, guava, mahogany, containerized ornamentals, and non-cultivated wild plants.

Notching along the margins of young leaves is a telltale symptom of the presence of D. abbreviatus adults, or other related root weevils. The larvae of D. abbreviatus are found in the soil where they feed on the roots of the host. They will often girdle the taproot, impeding the ability of the plant to take up water and nutrients resulting in plant mortality. In addition, this type of injury provides an avenue for root rot infections by Phytophtora. A single larva can kill young hosts while several larvae can cause serious decline of older, established hosts. Because larvae are below ground, it is difficult to detect them before decline of above ground potions of the host is observed.

DIAPREPES ROOT WEEVIL QUARANTINE

QUARANTINE REGULATIONS

TDA's Diaprepes Root Weevil Quarantine regulations are found in (Title 4, Chapter 19, Subchapter V, Rule §§19.160-19.163). 

CLICK HERE to view the Diaprepes Root Weevil Quarantine regulations (Title 4, Chapter 19, Subchapter V, Rule §§19.160-19.163) in page-layout format, for your convenience.

CLICK HERE to view the Diaprepes Root Weevil Quarantine on the Texas Secretary of State's website.

GEOGRAPHIC AREAS SUBJECT TO THE QUARANTINE

Per Rule §19.161 of the quarantine, the following areas are hereby declared to be quarantined areas: 

  (1) Within Texas: 

(A) Cameron County.

(i) The area enclosed by starting at the point described as N26.143013 degrees and W97.398653 degrees, then East following the natural contours of the resaca to a point described as N26.138236 degrees and W97.394963 degrees, then South to a point described as N26.136483 degrees and W97.394898 degrees, then East following the natural contours of the resaca to a point described as N26.128951 degrees and W97.396851 degrees, then West to a point described as N26.128643 degrees and W97.401679 degrees, then North-West to a point described as N26.130126 degrees and W97.405284 degrees, then North to a point described as N26.132881 degrees and W97.405949 degrees, then East to a point described as N26.13342 degrees and W97.403739, then North following the natural contours of the resaca to the starting point. 

(B) Hidalgo County.

        (i) The area enclosed by starting at a point described as N26.294334 degrees and W98.223207 degrees, then East to a point described as N26.292468 degrees and W98.211813 degrees, then South to a point described as N26.288312 degrees and W98.212585 degrees, then East to a point described as N26.286927 degrees and W98.203444 degrees, then South to a point described as N26.281463 degrees and W98.204539 degrees, then West to a point described as N26.281829 degrees and W98.207629 degrees, then South to a point described as N26.274088 degrees and W98.20903 degrees, then West to a point described as N26.275685 degrees and W98.219502 degrees, then North to a point described as N26.28467 degrees and W98.217764 degrees, then West to a point described as N26.285593 degrees and W98.225188 degrees, then North to the starting point.

(C) Harris County. 

(i) The property located at 6027 Glen Cove Street, Houston, Harris County, Texas, and the surrounding area within 300 meters.
(ii) The property located at N29.83167 degrees and W95.57433 degrees, and the surrounding area within 300 meters. 
(iii) Russ Pitman Park, Bellaire, Harris County, Texas and the surrounding area within approximately 300 meters in all directions.



  (2) Outside Texas: 

(A) State of Florida: Counties of Broward, Dade, DeSoto, Collier, Glades, Hendry, Highlands, Hillsborough, Indian River, Lake, Lee, Manatee, Marion, Martin, Orange, Osceola, Palm Beach, Pasco, Polk, Seminole, St. Lucie, Sumter, Volusia; 

(B) the Commonwealth of Puerto Rico

(C) the islands of the West Indies; and 

(D) any other area where the quarantined pest is detected.



CHRONOLOGY

05/27/2020. The quarantined area in Cameron county is hereby expanded to include groves newly confirmed to be infested with Diaprepes Root Weevil.  Areas within approximately 300 meters in all directions of infested groves are included in the quarantined area. 

05/27/2020. The quarantined area in Hidalgo county is hereby modified.  The field on the northwest intersection of East Dove Avenue (also known as Owassa Road) and South Jackson Road, McAllen, Texas is hereby removed from the quarantined areas.

04/26/2015. Adopted new Rule §19.161 and adopted amendments to Rule §19.163 became effective on this date. New Rule §19.161 streamlines the process of designating, modifying or deregulating quarantined areas. Amendments to Rule §19.152 revise the definition of regulated article. Amendments to Rule §19.163 clarify application requirements for pesticide products approved for treatment of the Diaprepes root weevil.
 
05/29/2014. The department filed emergency amendments to Rule §19.161 Quarantined Areas of the Diaprepes Root Weevil Quarantine (Title 4, Chapter 19, Subchapter V, Rule §§19.160-19.163). The emergency amendments, published in the Texas Register, became effective the day they were filed.


 
Interactive Map of Diaprepes Root Weevil Quarantined Areas in Texas
Cameron County:
CLICK HERE to view an interactive map of quarantined areas in Cameron County.

Hidalgo County
:
CLICK HERE to view an interactive map of quarantined areas in Hidalgo County.

Harris County
:
CLICK HERE to view an interactive map of quarantined areas in Harris County.