insecticide ear tags should be applied 2 tags per animal for optimum control which will be for 4-6 months depending on the company and active ingredient in the tag. By the way it is a good idea to rotate your ear tags every year to prevent the flies from building a resistance. Rotate by active ingredient not brand name, rotate b/t organophosphates and permethrin.
Also use the same hole for crying out loud and use a good head gate, if necessary invest in a $3.50 rope halter.
Also these tag remover knives are a great deal and easy to use again $4.00 at most. These are safe for you.
Also use the same hole for crying out loud and use a good head gate, if necessary invest in a $3.50 rope halter.
Also these tag remover knives are a great deal and easy to use again $4.00 at most. These are safe for you.