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City of Berkeley, California, Rat Control Program

The City of Berkeley not only deals with complaints about rodents but also works with tenants or property owners to remove rodents or insects from their properties. The staff carry out in-depth surveys, and provide consultation and recommendations to keep rodents from entering properties and control them if they already are causing an infestation. They remove overgrown vegetation, trash, garbage, and debris, thereby eliminating rodent harborage. They monitor sanitary sewers throughout the city and use appropriate rodent control techniques. They work with the Public Works Department to find broken sewer lines or laterals and make sure that they are repaired to keep the rats from leaving the sewers and entering properties. They conduct surveys throughout the city especially along the waterfronts, in the parks, and in vacant lots. They then carry out proper rodent control activities.

California Mosquito Control Programs

(See endnote 30)

The California mosquito control programs are built around the document “Overview of Mosquito Control Practices in California” by the Vector-Borne Disease Section, California Department of Public Health. The document discusses the fundamentals of organized mosquito control programs in California including: the types of mosquitoes; citizen responsibilities; mosquito breeding and harborage reduction; the job of the public agencies; and techniques of surveillance. Prevention and control of mosquitoes includes discussions on: integrated pest management; habitat modification; biological mosquito control; and chemical mosquito control. Pesticide issues include pesticide basics; pesticide labels and the significance of following instructions carefully; and pesticide resistance. Larval growth is controlled by bacterial agents, surface agents, insect growth regulators, and only if necessary, chemical larvacides. Adult mosquito control discusses (ultra-low volume spraying and barrier spraying. The adult control chemicals are examined and discussed including malathion, naled, pyrethrins, and pyrethroids such as resmethrin, Sumithrin, permethrin, and deltamethrin. Relative risk is introduced including the potential for disease from the mosquitoes as well as from the chemicals to try to control the mosquitoes.

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