Medicated ear tags

[DarrellS]

Does anyone use them on your dogs collar for fleas and ticks. Old farmer told me to cut them in half and attach to my outside dogs collars to control fleas and ticks.

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[WT]

Works like a charm. I also use them in my pop-ups.

[bowaddict40]

Works like a charm. I also use them in my pop-ups.

Does it keep spiders out? Or just fleas and ticks.