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Malaria Control in War Areas monthly report ; May 1943
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Malaria Control in War Areas monthly report ; May 1943
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    Approximately 15,000 surface acres of ponds and ditches were treated with 159,500 gallons of oil and 9,500 pounds of paris green as wanner weather this month produced a decided increase in Anopheles breeding. Over 800 acres of pond and ditch banks were cleared, 2,550,000 lineal feet of ditch were cleaned and approximately 525,000 lineal feet of minor ditching was completed. A total of 445,750 man hours of labor were expended on larvicide and minor drainage projects in May (Table I).

    Two major drainage projects, one a dragline project at Jerome, Arkansas and the other a vertical drainage project just outside Jefferson Barracks in Missouri, were completed in May. Forty-two major drainage projects were in operation this month in 15 states (Table II). Nearly 20 miles (104,592 lineal feet) of new ditch were constructed, 196,000 lineal feet of ditch were cleaned, 1,650 lineal feet of underground drains were installed and 745 acres of water were eliminated. A total of 158,185 man hours of labor were expended on major drainage projects in May.

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