Sizing Up DDT

A lot of people have now heard about “DDT.” Part of this hearsay is true; part isn’t; much is misleading. Perhaps we can satisfy some curiosity and correct some erroneous impressions about this much publicized material. Is it really proving to be as good for killing insects as its first reports indicated? We’ll see

In Memoriam: Jean Luther Laffoon, 1922-1973

Jean L. Laffoon, Professor of Zoology and Entomology at Iowa State University, died January 19, 1973, in Ames, Iowa, after a brief illness. Dr. Laffoon was born in Sioux City Iowa on August 19 1922. He graduated from Central High School, Sioux Citv, in 1939 and was awarded a B.S. degree in biology from Morningside College in 1942. In the fall of that year he entered the University of Michigan, Ann Arbor, but withdrew to volunteer for service in the United States Navy. Upon his discharge, three years later, he enrolled in the Graduate College at Iowa State University, where he earned an M.S. degree in 1948 and a Ph.D. degree in 1953, both in entomology

Toxicity of some dinitrophenols to the American dog tick, Dermacentor variabilis (Say)

Volume: 33Start Page: 97End Page: 10

Región Capital de la provincia de Buenos Aires, estudio exploratorio de sus ventajas comparativas

CD interactivo editado por el Centro de Documentación e Información del Programa de Fortalecimiento Institucional de la Secretaría de Asuntos Municipales e Institucionales de la Provincia de Buenos Aires en base al proyecto 95/013 del Programa de Naciones Unidas para el Desarrollo, PNUD (Integrante por la Universidad Nacional de La Plata).Dirección de Asuntos Municipale

Región Capital de la provincia de Buenos Aires, estudio exploratorio de sus ventajas comparativas

CD interactivo editado por el Centro de Documentación e Información del Programa de Fortalecimiento Institucional de la Secretaría de Asuntos Municipales e Institucionales de la Provincia de Buenos Aires en base al proyecto 95/013 del Programa de Naciones Unidas para el Desarrollo, PNUD (Integrante por la Universidad Nacional de La Plata).Dirección de Asuntos Municipale