Fever Ticks Lay Claim to a Million Acres in Texas

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News Release
Texas Animal Health Commission
Box l2966 * Austin, Texas 78711 * (800) 550-8242 * FAX (512) 719-0719
Bob Hillman, DVM * Executive Director
For info, contact Carla Everett, information
officer, at 1-800-550-8242, ext. 710, or [email protected]


For immediate release—-


The Texas Animal Health Commission (TAHC) marked an ominous anniversary July 3 by expanding the  preventive cattle fever tick quarantine  area in  south Texas by 307,000 acres, after the dangerous livestock pests were detected on cattle outside quarantine areas in Starr and Zapata counties. Fever ticks, capable of carrying and transmitting deadly “tick fever” to cattle, have been detected on livestock or wildlife on 139 Texas pastures during the past 12 months.

“In July 2007, the first preventive quarantine was established­-39,325 acres in Starr County­-to enable the US. Department of Agriculture’s Tick Force and the TAHC to inspect and treat livestock moved from the area, get ahead of the fever tick and push it back across the quarantine line,” said Dr. Bob Hillman, Texas’ state veterinarian and head of the Texas Animal Health Commission, the state’s livestock and poultry health regulatory agency.  “Now, a year later, we have more than a million acres under preventive
quarantines in Starr, Zapata, Jim Hogg, Maverick, Dimmit and Webb counties, in addition to the half-million acres in the permanent fever tick quarantine zone that runs alongside the Rio Grande, from Del Rio to Brownsville.”


The enlarged preventive quarantine includes portions of Starr, Zapata counties and a small area in Jim Hogg County. It is bounded on the north by Texas Highway 16, from its intersection on the west with US Highway 83 to its eastern junction with Ranch Road 649.  Ranch Road 649 is the eastern boundary to its southern intersection with US Highway 83, which is the western boundary  stretching northward to the intersection with Texas Highway 16.  Maps of this and all preventive fever tick quarantines are available on the TAHC website at  http://www.tahc.state.tx.us or by calling the TAHC at 800-550-8242.


“This is no longer a ‘border war’ against the  fever tick,” said Dr. Hillman.  “The fever tick  has gained a substantial foothold on Texas soil, and without adequate resources to fight this pest, it will spread.”  The fever tick, which can survive winters from coast to coast and as far north as Washington, D. C., was successfully pushed back into Mexico in 1943.  Periodic tick incursions since then have occurred in Texas, but only one, in the 1970s, eclipsed the current outbreak for the number of premises infested and took six years to eradicate.

“In smaller states, a quarantine area the size of Delaware would raise red flags,” said Dr. Hillman.  “Texas’ vastness and the previous
success at keeping the fever tick controlled may be working against us.  Now we need help, with a million more acres to cover and finding about a dozen infested premises a month.”

“Early this year, the fever tick program received $5.2 million of the $13 million of federal funds requested to fight the tick, and while
appreciated and used, it is not enough to win this battle,” said Dr. Hillman.  “Furthermore, there has been no funding for the National Fever Tick Eradication Strategic Plan, developed and approved by USDA in 2006.  It called for preventing entry of cattle fever ticks into the U.S., enhancing surveillance, and eradicating infestations resulting from fever tick incursions.  The plan also was to identify and procure the tools necessary to keep the U.S. free of fever ticks, and to work with Mexico, where cattle fever ticks are not controlled.  The strategic plan has not been implemented.”


“It’s really a ‘pay now or pay later’ scenario, because this tick won’t be stopped with less than an all-out assault that requires adequate personnel, sufficient treatment products, and enough equipment, such as portable dipping vats or portable spray boxes for cattle, and treatment equipment for deer and other wildlife hosts,” said Dr. Hillman.  “Texas has a ticking time bomb in south Texas. So far, we have had only two of the three elements for a ‘tick fever’ outbreak­-fever ticks and fever tick hosts­-including cattle, horses and several species of wildlife.  If, however, some of these fever ticks carry babesia, a blood parasite deadly to cattle, the equation would be complete and we could see livestock death losses.” (more on babesia here)


On the front lines are the ranchers in the preventive quarantine areas who must gather their cattle for inspection­which in the south Texas brush country usually requires helicopters and cowboys on horseback.  The TAHC and USDA work cooperatively to provide the inspections to determine the scope of infestation in the area.  Cattle, horses and ruminants, including llamas and camels, also must be inspected, treated and permitted prior to leaving the area.


Dr. Hillman encouraged ranchers to comply with the preventive quarantines and asked producers in adjacent counties to have their livestock checked prior to movement out of the area. “In discussions with ranchers, it has been suggested that cattle moving through south Texas livestock markets be inspected and dipped prior to sale,” said Dr. Hillman.  “This is being considered, but it, too, requires additional personnel, chemicals and the construction of dipping vats, resources we do not have at this time.”


“We have traced more than 1,000 cattle moved from ranches later found to be tick-infested,” said Dr. Hillman.  “Requesting an inspection prior to movement costs nothing for the rancher, but it could save us countless hours of tracking cattle, time that could be better used in the field to fight the ticks. I also encourage ranchers anywhere in Texas to call us if they see tick infestations on their cattle.  We can check the animals, and collect and send tick samples to the state-federal laboratory for identification. We do not want to take any chances with these ticks and spread them further.”  Ranchers can call their area TAHC office, or the a