A.Bert Snyder of Palmetto Exterminators in Charleston, S.C., responds: If woodpeckers are boring holes in the siding, then either the siding is harboring some type of wood-boring insect that the woodpeckers are hunting for food, or the woodpeckers are drumming on it to establish territory or find a mate (this typically happens in the spring).

To eliminate the food source, treat the siding with an insecticide; you'll find several kinds at your local hardware store or home-and-garden center that should be effective against the kinds of insects found in your area.

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