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My horses have so many ticks, what can I do?

Feb 2018
I have 2 horse on 5 irrigated acres NE Bend, Deschutes county. I have been pulling ticks off them for a few weeks. I dewormed with an Ivermectin which kills any that were attached at the time, but more climb on and attach. What's an effective way of getting rid of ticks from property and livestock? Thanks for any help.

By Scott Duggan | Featured Question