摘要：Nozzle erosion can result in a considerable economic loss to a malaria control programme owing to overapplication of insecticides. The factors responsible for increased discharge rate due to nozzle erosion may vary considerably. Consequently, criteria determined for one or two sets of erosion conditions cannot be generally applied. A method has been developed which permits any individual programme to evaluate spray nozzles under the applicable nozzle erosion conditions. This method has the additional advantage of requiring only two discharge rate determinations instead of a series. Full text Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (719K), or click on a page image below to browse page by page. 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083
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