Which fly-control option is administered by mouth to cattle?

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Multiple Choice

Which fly-control option is administered by mouth to cattle?

Explanation:
Oral larvicides are given to cattle through feed or water, so they are swallowed. Once inside the animal, the active ingredient is excreted in the manure, creating a hostile environment for fly larvae as they develop. This feed-through approach breaks the fly life cycle from the ground up, reducing the number of flies that reach adulthood. Other methods work differently: sprays are applied to cattle or their environment for contact kill, dust bags release powder in the barn, and ear tags place insecticide near the animal’s head to affect flies that land on them. So the option that is administered by mouth is oral larvicides.

Oral larvicides are given to cattle through feed or water, so they are swallowed. Once inside the animal, the active ingredient is excreted in the manure, creating a hostile environment for fly larvae as they develop. This feed-through approach breaks the fly life cycle from the ground up, reducing the number of flies that reach adulthood. Other methods work differently: sprays are applied to cattle or their environment for contact kill, dust bags release powder in the barn, and ear tags place insecticide near the animal’s head to affect flies that land on them. So the option that is administered by mouth is oral larvicides.

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