Public should be aware of New Mexico pecan weevil
quarantine
Regional effort among Arizona, New Mexico and
Texas is encouraged
Last November, the Pecan Weevil Interior Quarantine Rule went into effect. The rule establishes
quarantine areas, restrictions and treatment options. Quarantined areas include
Eddy, Lea and Chaves Counties. The interior rule is an addition to New Mexico’s
Pecan Weevil Exterior Quarantine Rule enacted in 1997. The exterior rule
restricts the movement of in-shell pecans originating in all states except
Arizona, California and the Texas counties of El Paso and Hudspeth, as well as
parts of Culberson County.
To prevent
the spread of pecan weevil in New Mexico, in-shell pecans cannot be transported
out of quarantined areas unless one of the following treatments has occurred:
- Storage in an approved cold storage chamber at or below zero degrees Fahrenheit for a period of seven consecutive days (168 hours) after the entire lot reaches zero degrees Fahrenheit
- Immersion in hot water for a period of five minutes after reaching a temperature of 140 degrees Fahrenheit
The shipment
of in-shell pecans originating from a New Mexico quarantined county directly to
an approved New Mexico cold storage facility is allowed. Approval from NMDA
must be obtained prior to shipments. In-shell pecan shipments that do not
comply with state pecan weevil quarantine requirements risk destruction,
confiscation or other consequences as allowed by state law.
Pecan weevil
is considered the most significant insect pest of pecan producers. If not contained,
the pest could affect the state’s pecan industry’s economic impact. According to the United States Department of
Agriculture–National Agricultural Statistics Service, the state’s pecan
production in 2018 was over 91 million pounds with a production value of $187
million. New Mexico’s 2019 pecan production forecast is at a record high
of 97 million pounds.
New Mexico
leads the nation in pecan production density. The top five pecan-producing
counties in the state are Doña Ana (over
34,000 acres), Eddy (over 5,000), Chaves (over 3,000), Luna (over 1,000) and
Sierra (about 500). Doña Ana County leads the
entire nation in pecan production with just under 67 million pounds from 34,319
acres.
Widespread
establishment of pecan weevil in New Mexico’s commercial and residential pecan
acres would result in additional two-to-four pesticide applications at an
estimated statewide industry cost of $4.0 to $6.5 million per year. Until an
effective control method is developed, establishment of pecan weevil in the
state’s organic pecan orchards would probably result in the loss of that
portion of the industry.
If you
suspect the presence of pecan weevil or have any questions, please contact the
New Mexico Department of Agriculture at 575-646-3207.