St. Louis maintains a Rodent Control Program through the Health Department's Vector Control unit, requiring property owners to abate harborage and authorizing city baiting of alleys and right-of-way.
Under Title V of the Revised Code, property owners must keep premises free of rodent harborage, including overgrown vegetation, accumulated debris, uncovered trash, and exterior food sources. The Vector Control program operates citywide alley baiting, sewer baiting, and burrow treatment using rodenticides labeled for municipal use. Residents may request inspections through the Citizens' Service Bureau. Inspectors issue Notices of Violation when conditions favor rat populations, and uncorrected violations escalate to court summons. Pet food left outdoors and unsecured compost piles are common contributing nuisances cited in St. Louis neighborhoods.
Maintaining rodent harborage on private property after notice from a Vector Control inspector results in court summons, fines, and possible city abatement billed to the owner.
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