Insect Pests On Beef Cattle

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Insect Pests On Beef Cattle

• Jeffery K. Tomberlin, Ph.D.
• Department of Entomology
• Texas Cooperative Extension
• Texas AM University
• jktomberlin_at_ag.tamu.edu
• 254 968 4144

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Male Female
Southern cattle tick, Boophilus microplus
-One host tick
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Sites Attacked By Flies
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Three Primary Fly Pests

• House fly
• Stable fly
• Horn fly

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House fly, Musca domestica
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Horn fly, Haematobia irritans
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Insect Life Cycle
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Horn fly, Haematobia irritans

• 1 pest affecting cattle
• Both sexes feed multiple times daily
• Reside on cow
• Consume 10 µl/day 3000/cow30 ml/day
• Bites hurt
• Cosmetic defects

Biology 1
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• Nursing cows
• Metabolism of cow
• Reduce feeding

Economic Threshold250 flies/cow
Biology 2
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Effects on weight gain
Horn fly s in Canada
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Stable Fly, Stomoxys calcitrans
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Insect Life Cycle
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Where Are The Breeding Sites For Stable Flies?
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Stable fly, Stomoxys calcitrans

• More abundant in confined areas
• Attack many areas sides, back, primarily legs
• Both sexes feed once/day
• Do not reside on cow
• Bites hurt result in wound
• Reduced feeding

Economic Threshold 2-4/leg
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Greene et al. (Kansas State University)
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Greene et al. (Kansas State University)
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Greene et al. (Kansas State University)
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Saskatchewan (Agriculture, Food and Rural
Revitalization
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Saskatchewan (Agriculture, Food and Rural
Revitalization
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Various Control Methods
Cultural
Chemical
Biological
??????????
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Biological Control
Simply stated using what nature has provided to
suppress pest species
Parasitoids
Competition
Predators
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Cultural Control

• Simply stated modifying the environment so that
  it is unsuitable for sustaining a pest population

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Wes Watson (North Carolina State University)
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Chemical Control
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Baits for house flies
-Imidachloprid/muscalure -Cannot be used around
animals -6 oz per 1,000 sq ft -24.00 per 5 lb
bucket 111.00 per 40 lb bucket -life?
QuickBayt
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Golden Malrin
-Methomyl/muscalure -Cannot be used in areas with
animals -8 oz per 1,000 sq ft -8.00 per
unit -life?
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QuickStrike
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-Nithiazine-sugar -Can be used around animals -8
wk life -10-20 per unit
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Comparison Study of Baits
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Comparison Study of Baits
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Comparison Study of Baits
Six 1 hr replicates
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Ear Tags

• What are they?
• What are they used for?
• Which ones do I use?

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Common Ear Tags
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Double Barrel

• OP/Syn Pyrethroid
• 5 months
• Use on beef, non-lactating, calves
• Triangle design
• No pre-slaughter
• withdrawal

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Dominator

• OP
• 5 months
• Used on calves

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Gardstar Plus

• Permethrin 10

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Back rubs
Oil face flaps
Oiler bullets
Barnyardhealth.com
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Perimeter Sprays

• Vapona, Dichlorvos (op)
• Spray around barns for flies, etc.
• Suggested weekly Base on fly !!!

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Pour-on Insecticides

• Permethrin
• Non-restricted use
• Used as perimeter spray, back rubs, pour-ons
• Can remain in storage for approximately 1 year

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Summary

• Know your pests
• Economic thresholds
• Use a combination of techniques
• Read labels
• Be careful!!
• The information given herein is for educational
  purposes only. Reference to trade name is made
  with the understanding that no discrimination is
  intended and no endorsement by the Texas
  Cooperative Extension Service is implied