Abstract
The question of toxicity has been growing in importance as a factor to be considered in evaluating the acceptability of pesticides. In 1947, adequate warnings were recognized as a fundamental part of pesticidal labeling under the Federal Insecticide, Fungicide, and Rodenticide Act. To fulfill its obligations under that Act, the United States Department of Agriculture has required that data on toxicity by various routes of administration be filed by applicants for registration of new pesticides. The uses for which the product is to be sold determine the extent to which these data must be carried, so no simple outline of the work needed is possible. Cooperation between the Departments of Agriculture and Health, Education, and Welfare already has worked to prevent the interstate shipment of new pesticides until a great deal of toxicological data has been made available, although future poison control may be expected to become more stringent if present trends continue. An informed American Public Health Association will do much to make new moves realistic, so that the dangers inherent in chemical use may be guarded against, while the values of such use can be preserved for the never-ending fight against economic loss, discomfort, and disease.

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