Justin Talley PhD, Oklahoma State University Extension Livestock Entomologist — As most cattle producers know from year-to-year the fly and tick season is highly variable. Some may have pinned their hope in a hard winter to reduce these external parasites but in reality, it may not influence the overall intensity or longevity of the season. Regardless of the perception of how bad the fly or tick populations could be it is important to plan on control practices that are economical and allow the cattle to be efficient in their energy expenditures. Cattle are impacted by blood feeding external parasites whether…

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