. Economic evaluation of mosquito control and narrow spectrum mosquitocide development in California . Figure 4: Insecticide use by control districts for mosquito control In California, 1955-1971. a/ 525 500 350 300 250 200 150 100 50 Organophosphoruses Chlorinated hydrocarbons

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Keywords: ., bookcentury1900, bookcol, bookleafnumber31, booksubjectmosquitoes