Controlling Horn Flies, Lice, Grubs and Ticks on Cattle by Chemical Use

Floron C. Faries, Jr., DVM, MSProfessor and Extension Program Leader for Veterinary

MedicineTexas AgriLife Extension Service

Texas A&M System

Horn Flies

Horn Fly Allergy

Cattle Lice

Heel Flies – Cattle Grubs

Spinose Ear Ticks (Soft Ticks)

Body and Ear Ticks (Hard Ticks)

Fever Ticks (One Host Ticks)

Cattle Horses White-tailed deer, elk, Nilgai, red deer Not sheep, goats, swine, dogs

Permanent Fever Tick Quarantine Zone

200 yards to 6 miles wide 500 miles along Rio Grande Del Rio to Brownsville 8 counties

Val Verde Kinney Maverick Webb Zapata Starr Hildalgo Cameron

Temporary Preventive Fever Tick Quarantine Area

2007 Expanded portions of Starr and Zapata

counties Small area of Jim Hogg county

2008 Expanded portions of Starr, Zapata, Webb and

Maverick counties Small areas of Jim Hogg and Dimmit counties

Hand-Treatment Methods

Body Spray Back Pour-on Back Dust SQ Injection Oral Bolus Ear Swab Body Dip

Hand Pressure Sprayer

Shower Pressure Sprayer

Back Pour-on

Ear Swab

Dipping Vat

Self-Treatment Methods

Ear Tags Back Rubber Dust Bag Supplement Blocks

Ear Tags

Dust Bags

Supplemental Blocks

Organophosphates

Coumaphos Phosmet Fenthion Chlorvinphos Dichlorvos Chloropyrifos Diazinon Ethion Pirimiphos

Pyrethroids

Permethrin Fenvalerate Cypermethrin Cyfluthrin Lambdacyhalothrin Zetamethrin Cyhalothrin

Chlorinated Hydrocarbons

Methoxychor

Formamidines

Amitraz

Macrolides

Ivermectin (Ivomec®) Eprinomectin (Eprinex®) Doramectin (Dectomex®) Moxidectin (Cydectin®)

Synergists

Piperonyl Butoxide Dicarboxamide MGK 264

Insect Growth Regulators

Chlorvinphos Diflubenzuron

READ AND FOLLOW THE LABEL

Precautions to prevent poisoning Follow labeled dose Follow labeled interval Follow labeled minimum age Follow labeled animal species