How can I keep the duck pool from being an incubator for mosquitos?

or:How can I keep the duck pool from being an incubator for mosquitos?or:A few drops of oil on the water kills the baby mosquitoes by suffocating the

or:How can I keep the duck pool from being an incubator for mosquitos?

or:A few drops of oil on the water kills the baby mosquitoes by suffocating them. Any oil. Not enough to make your ducks messy.

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