United States – Mexico Bi-National Tick Committee Meeting Texas State Report Dee Ellis, DVM, MPA Texas State Veterinarian

Current Fever Tick Information As of December 31, 2009  90 premises Quarantine: 25 in the Free Area 65 in the Tick Eradication Quarantine Area  496 adjacent or check premises: 165 in the Quarantined Area 331 in the Free Area As of December 31, 2010  111 premises Quarantine: 56 in the Free Area 55 in the Tick Eradication Quarantine Area  439 adjacent or check premises: 137 in the Quarantined Area 302 in the Free Area

Blanket Areas under Temporary Quarantine

179,600 acres Blanket Areas under Temporary Quarantine Carrizo Springs

Texas State Report Cattle Fever Tick Eradication Program (CFTEP)  Carrizo Springs Blanket Quarantine Area (BQA) Established 8/07 on approx. 622,000 acres No new or recurrent infestations since 5/09 Approx. 179,000 acres remain Final release expected in Spring of

Zapata & Jim Hogg 423,000 acres Blanket Areas under Temporary Quarantine

Texas State Report Cattle Fever Tick Eradication Program (CFTEP)  Zapata & Jim Hogg Portion – Southern Blanket Quarantine Area (BQA) Intensive cattle/wildlife treatment program continues through Free Area infestations found only on premises adjacent to Tick Eradication Quarantine Area (TEQA) Infestation due to displaced white-tail deer from the TEQA flooding Re-inspection of herds underway, surveillance completed by 6/11 Partial release in summer of

Wildlife Treatment Sites 2010 Zapata County TEQA Northern Sector Zapata Townsite San Ygnacio Mexico

Blanket Areas under Temporary Quarantine Starr Co. 152,700 acres

Texas State Report Cattle Fever Tick Eradication Program (CFTEP)  Starr County Portion – Southern Blanket Quarantine Area (BQA), approx. 160,000 acres Continued problems with infestation of white-tail deer on vacant premises Responding to systematic treatment in cattle & horses Expected to downsize by end of 2011 Intensified wildlife treatment program underway

Blanket Areas under Temporary Quarantine Olmal 152,700 acres

Texas State Report Cattle Fever Tick Eradication Program (CFTEP)  Third BQA, Olmal, approx. 152,700 acres – no documented cases in wildlife. Responding to systematic treatment in cattle & horses Possible downsizing by end of 2011 Re-evaluation of wildlife involvement underway No documented cases of fever ticks in wildlife

Texas State Report Cattle Fever Tick Eradication Program (CFTEP)  Deer Treatment Program Distribution of Ivomec corn Feb-July (must stop 60 days prior to hunting season) Distribution of Permethrin product during hunting season (4 poster)

Wildlife Treatment Products limited… Ivomec-corn used in feeders 4-poster (below left) Closed Gravity Flow Feeder (below right) Withdraw prior to hunting season!

CFTEP Activities in FY 2010 New equipment--- deer feeding, vehicles, computers, tractors, portable dip vats, spray boxes, etc. New staff--- targeted to areas of need– deer feeding, epidemiologists, MPI’s in Starr County, IT support New management --- borrowed from other successful programs--- written Herd plans, emphasis on epidemiology, mapping, RFID / MIMS in each quarantined herd More interaction/consultation with wildlife biologists

Treated Corn Delivery to Deer USDA begins bulk feeding of Ivomec-treated corn Bulk mixing equipment purchased Large trucks to deliver More personnel assigned to affected counties

CFTEP Activities (continued) Database development custom software or utilize TAHC mgt. software deer feeding program 1 st Infested pasture management 2 nd (CFTEP info management is identical to 1943) Increased accountability program results Increased ability for public to analyze success Quarterly management reviews Monthly Information dissemination

Future Tools Vaccines? Gavac under ARS evaluation in Texas – field trial in 2011 Australian Autogenous? Ivermectin Treated Molasses Tubs MUMS approval process by FDA underway by Postive Feed -TX Advantage self-treat cattle on infested or adjacent pastures minimize the expense of gathering the cattle Field trial in 2011 – final approval time uncertain

Texas Bovine Tuberculosis Report

Texas State Report Tuberculosis Currently no known infected cattle herds in Texas Last infected herd West Texas dairy depopulated April possible source herds – 3 states - all tested negative No source ultimately found

Texas State Report Tuberculosis From infected herd - Texas Animal Health Commission (TAHC) traced 5,500 dairy cattle sold as trace outs TAHC tested 65 herds/65,000 cattle as result No infection found Texas’ mandatory ID program key to finding trace animals

2010 Activities: 4 fed cattle TB cases detected at slaughter All 4 traced to Mexico 2 had ID and 2 were in lots of Mexican cattle Close oversight of veterinarian caudal fold response rate Success -.95% for 2010 vs..398% in Texas State Report Tuberculosis

Brucellosis Report

Texas State Report Brucellosis 1 newly infected cattle herd detected in South Texas 1/11 Market testing found 3 positives, 3 more found on herd test culture + - b. abortus biotype 1

Texas State Report Brucellosis Infected herd epidemiological investigation underway 1 possible source herd Test 1 mile circle of surrounding herds to start Trace as far back as market records allow Owner never sold adult cattle 1 st infected herd found after over 6,000,000 cattle tested

Texas State Report Brucellosis Texas has more than 100 livestock markets Texas surveillance includes 1 st point testing at markets – adult cattle 1,000,000 adult tested per yr. Budget cuts may threaten future testing

Texas State Report Brucellosis Swine brucellosis infection cattle continues to complicate diagnosis 8 cattle confirmed infected with b. suis in 2010 in Tx. Cattle vaccine needed for future protection against feral swine

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