Beef Cattle: Livestock Parasite Control Insect pests cost Mississippi cattle producers millions of dollars annually. These pests cause financial losses by decreasing milk production and weight gains, by damaging carcasses and hides, and by transmitting diseases. This guide is intended as an aid in selecting the correct insecticide for the pest or pests involved. In all cases, read the label of any insecticide product before purchase. The directions for use and the limitations noted on a label may work for one farm and not another. Generally speaking, insecticides cleared for use on beef cattle may also be used on nonlactating dairy cattle, unless the label forbids such use. READ THE LABEL! HORN FLIES-Sprays Amount to mix with Material Trade name(s) 3 gallons of water 50 gallons of water Remarks and restrictions Coumaphos Co-Ral®    25% WP 1 oz 1 lb Completely wet animal to runoff. No time limitation to slaughter.    11.6% EC 2 oz 1 qt    42% EC 2 oz 1 qt Stirofos Rabon®    24% EC 3 oz 1.5 qt Completely wet animal to runoff. No time limitation to slaughter.    50% WP 2.5 oz 2.5 lb Permethrin    10% EC Ectiban Permectrin 2.5 oz 2.5 qt Spray head, neck, and shoulders. No time limitation to slaughter.    5.7% EC Insectrin Atroban 4 oz 2 qt Malathion    57% EC 3 oz 1.5 qt Completely wet animal to runoff. No time limitation to slaughter. Stirofos +    dichlorvos Ravap®    23% + 5.3% EC 5 oz 2.5 qt Apply as a coarse spray. No time limitation to slaughter. HORN FLIES-Dusts Work dust into hair coat. Use gloves, and wash hands soon after using. Material Trade name(s) Rate Remarks and restrictions Coumaphos Co-Ral® Thoroughly dust using not more than 2 oz per animal. Do not repeat more often than every 14 days. No time limitation to slaughter. Malathion    4% 2 oz per animal on neck May be repeated at 10-day intervals    5% and back No time limitation to slaughter. Methoxychlor Marlate®    50% One (1) rounded tablespoon per animal. Use no more often than every 3 weeks. Sprinkle on poll, neck, and back. No time limitation to slaughter. Rub into hair coat.    10% 2 oz per animal on poll, neck, and back. Use as often as needed. Rub into hair coat. No time limitation to slaughter. Permethrin    0.25% Ectiban 2 oz per animal over poll, neck, and back. Use as often as needed. Atroban Rub into hair coat. No time limitation to slaughter. Permectrin Insectrin Stirofos Rabon®    3% 2 oz per animal over poll, neck, and back. Use as often as needed. Rub into hair coat. No time limitation to slaughter. HORN FLIES-Dusts Bags Forced use is more effective than free choice. Material Trade name(s) Remarks and restrictions Coumaphos    1% Co-Ral® Do not hang directly over feed, water, or mineral troughs. No time limitation to slaughter. Stirofos    3% Rabon® No time limitation to slaughter. Methoxychlor    10% Marlate® No time limitation to slaughter. Permethrin    0.25% Atroban No time limitation to slaughter. Ectiban Permectrin HORN FLIES--Backrubbers Place where runoff will not contaminate water. Force use is more effective than free choice. Material Trade name(s) Rate Remarks and restrictions Coumaphos    11.6% E Co-Ral® 10 oz per 1 gallon of fuel oil Use approximately 1 gallon per 20 feet of rubber. No time limitation to slaughter. Fenvalerate    10% EC Ectrin 8 oz per 5 gallons of fuel oil Use approximately 1 gallon per 20 feet of rubber. No time limitation to slaughter. Permethrin    10% EC Atroban Ectiban Permectrin 8 oz per 5 gallons of fuel oil Use approximately 1 gallon per 20 feet of rubber. No time limitation to slaughter. Malathion    57% EC 5 oz per gallon of fuel oil Use approximately 1 gallon per 20 feet of rubber. No time limitation to slaughter. Methoxychlor    25% EC Marlate® 12 oz per gallon of fuel oil Use approximately 1 gallon per 20 feet of rubber. No time limitation to slaughter. Stirofos +     dichlorvos 23% + 5.3% EC Ravap® 5 oz per gallon of fuel oil Use approximately 1 gallon per 20 feet of rubber. No time limitation to slaughter. HORN FLIES--Pour-ons Material Trade name(s) Rate Remarks and restrictions Permethrin    1% Ectiban® 0.5 oz per 100 pounds body weight Pour along back line over neck, shoulders, and Atroban® up to a maximum of 5 oz rump. Do not apply more often than every 14 Permectrin® days. Ivermectin    5 mg/ml Ivomec® 1 ml per 22 pounds body weight Pour along top line in a narrow strip from withers to tail head; 48-day waiting period to slaughter. HORN FLIES-Ear tags Insecticide--impregnated ear tags. Horn flies have developed a high level of resistance to all brands of ear tags containing a synthetic pyrethroid (SP) as the active ingredient. Ear tags containing an organic phosphate (OP) do not give season-long control. For these reasons, one of the other treatment methods above is preferred. Ear tag brand name Type of active ingredient Comments Rotator® OP For best results, follow label directions exactly-- Excalibur® SP do not use fewer tags than labels direct. Use 2 Saber® SP tags per animal with all brands of ear tags. Tags Dominator® OP should be removed in the fall or when no longer Tomahawk® OP effective. Horn fly control need not be initiated Atroban® SP until fly numbers exceed 250 per cow Expar® SP Patriot® OP Terminator® OP Ectrin® SP Cutter Gold® SP Cutter Blue® OP Ranger® SP and OP Ear Force® SP HORN FLIES -- Oral Larvacides These materials are ingested by the animal, pass through the digestive tract, and are excreted in manure in concentrations high enough to kill fly larvae. For effective fly control with these materials, consider the following: Each animal must receive the proper amount at the proper interval. Are your neighbors following a fly control program? You may need to use supplementary control methods. Material Trade name(s) Method of administration Remarks and restrictions Stirofos    (various Rabon® Feed additive Animals must ingest proper amount daily for    concentrations) Mineral additive effectiveness; difficult to accomplish unless Mixed mineral hand-feeding. See label for mixing instructions. Mineral block Bolus products administered with balling gun. Methoprene Various Feed additive Mineral additive Mixed Mineral Mineral block Bolus LICE -- Sprays -- Do not spray cattle during cold winter. Amount to mix with Material Trade name(s) 3 gallons of water 50 gallons of water Remarks and restrictions Amitraz    12.5% EC Taktic® 2 oz 1 qt Spray cattle until runoff. Use spray mixture within 6 hours of mixing. No time limitation to slaughter. Permethrin    10% EC Ectiban® Atroban® Permectrin® Insectrin® 2 oz 1 qt Spray cattle until runoff. No time limitation to slaughter. Stirofos    24% EC Rabon® 5 oz 2.5 qt    50% WP 2.5 qt 2.5 lb Spray cattle until runoff. No time limitation to slaughter. Stirofos + dichlorvos    23% + 5.3 EC Ravap® 5 oz 2.5 qt Spray cattle until runoff. No time limitation to slaughter. Coumaphos Co-Ral®    11.6% EC 2 oz 1 qt Spray cattle until runoff. No time    25% EC 2 oz 2 lb limitation to slaughter. Methoxychlor Marlate®    50% WP 2 oz 2 lb Spray cattle until runoff. No time limitation to slaughter. LICE -- Pour-ons Preferred method over spraying during cold weather. Material Trade Name(s) Mixing instructions Remarks and restrictions Fenthion Lysoff®    7.6% EC Mix 8 parts water to 1 part fenthion Apply 1 oz of mixture per 100 pounds of body weight. Pour along back from shoulders to tail head. See label for mixing instructions; 21-day slaughter limitation. See label for age and condition restrictions.    3% Tiguvon® Ready to use Apply ½ oz per 100 pounds of body weight; 35-day slaughter limitation. See label for age and condition restrictions.    20% Spotton® Ready to use Apply 4 cc per 300 pounds of body weight; in one spot on back line; 45-day slaughter limitation. See label for age and condition restrictions. Permethrin    1% Ectiban® Atroban® DeLice® Permectrin® Expar® Ready to use Apply ½ oz per 100 pounds of body weight, up to a maximum of 5 oz. No time limitation to slaughter. Coumaphos    4% Co-Ral® Ready to use Apply ½ oz per 100 pounds of body weight, down top line from shoulders to tail head. No time limitation to slaughter. See label for age and condition restrictions. CATTLE GRUBS--Sprays Do not treat for cattle grubs after October 15. Amount to mix with Material Trade name(s) 3 gallons of water 50 gallons of water Remarks and restrictions Coumaphos Co-Ral®    11.6% EC 12 oz ½ lb Spray cattle until runoff. No time limitation to slaughter.    25% WP ½ lb 8 lb Trichlorfon Neguvon®    80% WP 6 oz 5 lb Spray cattle until runoff; 14-day time limitation to slaughter. CATTLE GRUBS--Pour-ons Material Trade name(s) Mixing instructions Remarks and restrictions Coumaphos Co-Ral®    4% EC Ready to use Apply ½ oz per 100 pounds of body weight, along top line from shoulders to tail head. No time limitation to slaughter. See label for age and condition restrictions. Famphur Warbex®    13.2% Ready to use Apply ½ oz per 100 pounds of body weight, up to 4 oz along top line; 35-day limitation to slaughter. See label for age, breed, and condition restrictions. Fenthion Tiguvon®    3% Ready to use Apply ½ oz per 100 pounds of body weight, along top line; 35-day limitation to slaughter. Trichlorfon Neguvon®    8% Ready to use Apply ½ oz per 100 pounds of body weight, along top line; 21-day limitation to slaughter. See label for age and condition restrictions. TICKS -- Sprays Animal must be wet thoroughly to the skin for best results. Approximately 2 gallons per adult animal will be required. Amount to mix with Material Trade name(s) 3 gallons of water 50 gallons of water Remarks and restrictions Amitraz Taktic®    12.5% EC 1 oz 1 pt Spray animal to runoff. Use prepared mixture within 6 hours. No time limitation to slaughter. Coumaphos Co-Ral®    11.6% EC    25% WP 2 oz 2 oz 2 qt 2 lb Spray animal to runoff. No time limitation to slaughter. Permethrin Atroban®    10% EC Ectiban® Permectrin® 2 oz 1 qt Spray animal to runoff. No time limitation to slaughter. Stirofos Rabon®    24% EC    50% WP 5 oz 2.5 qt 2.5 qt 2.5 lb Spray animal to runoff. No time limitation to slaughter. Stirofos + dichlorvos    23% + 5.3% EC Ravap® 5 oz 2.5 qt Spray animal to runoff. No time limitation to slaughter. Methoxychlo Marlate®    50% EC 4 oz 4 lb Spray animal to runoff. No time limitation to slaughter. Malathion    57% EC 6 oz 3 qt Spray animal to runoff. No time limitation to slaughter. HORSE FLIES AND DEER FLIES These insects are viscous blood feeders and cause much aggravation to livestock. Most insecticides do not effectively control them, especially in commercial herds. However, show animals and others that are handled regularly can be offered some relief with insecticides. Material Trade name(s) Method of application Remarks and restrictions Permethrin    10% EC Atroban® Ectiban® Spray: 1 pt. per 20 gallons of water Lightly mist animal. These products function as repellents. See labels for frequency allowed.    0.5% Aerosol Permectrin® Ready to use Spray animal as needed. Repeat as needed. By Dr. Douglas M. Gaydon, Extension Entomologist Mississippi State University does not discriminate on the basis of race, color, religion, national origin, sex, age, disability, or veteran status. Publication 214 Extension Service of Mississippi State University, cooperating with U.S. Department of Agriculture. Published in furtherance of Acts of Congress, May 8 and June 30, 1914. Ronald A. Brown, Director Copyright by Mississippi State University. All rights reserved. This document may be copied and distributed for nonprofit educational purposes provided that credit is given to the Mississippi State University Extension Service.

Visit: DAFVM || USDA Search our Site || Need more information about this subject? Last Modified: Thursday, 19-Feb-09 13:58:04 URL: http://msucares.com/pubs/publications/p0214.htm Mississippi State University is an equal opportunity institution. Recommendations on this web site do not endorse any commercial products or trade names.