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OPtimizer Insecticide Ear Tags, 20 ct Contains 21.4% Diazinon.For use on beef, non-lactating dairy cattle and calves over 3 months of age. Use two tags per head. OPtimizer Ear Tags aid in the control of: Gulf Coast ticks spinose ear ticks face flies lice Effective against pyrethroid-resistant horn flies for up to 5 months. Provides sustained insecticide release for season-long effectiveness. Use with Y-Tex Tagger
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🇺🇸 Ship from USA · On Agora since 2026
$34.55