SACAD: John Heinrichs Scholarly and Creative Activity Days


For this research project, we studied three separate pastures containing Fort Hays State University’s Holstein cows. One pasture was our control group, with no horn fly protection applied. Another pasture had cattle that were fed with garlic in their mineral salts, an all-natural horn fly prevention method. Our final pasture contained cows sprayed with a larvicide. This was a single-blind study, meaning I did not know which pasture had what treatment, but my professor knew. Throughout the late summer and early fall of 2023, we went out to each pasture and took pictures of ten cows per pasture. Then, using a software imaging program called GIMP, I counted each fly on each cow, keeping track of the ear tag numbers. The cows were always photographed from the east side and at the same time of day.

Faculty Advisor

Clyde Cranwell



Submission Type

in-person poster




Copyright the Author(s) Kae Dees