Controlling Horn Flies Lice Grubs and Ticks on

Controlling Horn Flies, Lice, Grubs and Ticks on Cattle by Chemical Use Floron C. Faries, Jr. , DVM, MS Professor and Extension Program Leader for Veterinary Medicine Texas Agri. Life 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) n Cattle n Horses n White-tailed deer, elk, Nilgai, red deer n Not sheep, goats, swine, dogs

Permanent Fever Tick Quarantine Zone n n 200 yards to 6 miles wide 500 miles along Rio Grande Del Rio to Brownsville 8 counties n n n n Val Verde Kinney Maverick Webb Zapata Starr Hildalgo Cameron

Temporary Preventive Fever Tick Quarantine Area n 2007 n Expanded portions of Starr and Zapata counties n Small area of Jim Hogg county n 2008 n Expanded portions of Starr, Zapata, Webb and Maverick counties n Small areas of Jim Hogg and Dimmit counties

Hand-Treatment Methods n Body Spray n Back Pour-on n Back Dust n SQ Injection n Oral Bolus n Ear Swab n Body Dip

Hand Pressure Sprayer

Shower Pressure Sprayer

Back Pour-on

Ear Swab

Dipping Vat

Self-Treatment Methods n Ear Tags n Back Rubber n Dust Bag n Supplement Blocks

Ear Tags

Dust Bags

Supplemental Blocks

Organophosphates n n n n n Coumaphos Phosmet Fenthion Chlorvinphos Dichlorvos Chloropyrifos Diazinon Ethion Pirimiphos

Pyrethroids n Permethrin n Fenvalerate n Cypermethrin n Cyfluthrin n Lambdacyhalothrin n Zetamethrin n Cyhalothrin

Chlorinated Hydrocarbons n Methoxychor

Formamidines Amitraz

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

Synergists n Piperonyl Butoxide n Dicarboxamide MGK 264

Insect Growth Regulators n Chlorvinphos n Diflubenzuron

READ AND FOLLOW THE LABEL n Precautions to prevent poisoning n Follow labeled dose n Follow labeled interval n Follow labeled minimum age n Follow labeled animal species