Beef cattle-Spinose ear tick

Otobius megnini

Management-chemical control

  • diazinon ear tag (Optimizer)-One tag to each ear of all animals older than 3 months when ticks are present. Remove tags at end of fly season or before slaughter.
  • diazinon/chlorpyrifos ear tag (Warrior)-One tag to each ear of all animals older than 3 months when pests appear. Remove tags at end of fly season or before slaughter.
  • permethrin spray (Atroban 11% EC) at 1 pint to 2.5 gal water. 1 to 2 oz spray per animal, spot treatment.
  • zeta-cypermethrin/piperonyl butoxide dust (PYthon) at 1/3 oz (1 T) directly to inside of each ear. Repeat as needed but not more often than once every 3 days.
  • zeta-cypermethrin/piperonyl butoxide ear tag (PYthon)-One tag to each ear of all animals when ticks appear. Remove tags at end of fly season or before slaughter.