World War II is a boon to the bug armies. The minerals with which man has fought bugs for years-arsenic, copper, lead-are now needed for his war on his own kind. Carbon tetrachloride, ethylene dichloride and chloropicrin are withheld from insecticide manufacturers for the benefit of war materials. The phosphorus paste that used to kill cockroaches now goes into incendiary bombs. A group of six articles on the war against insects, in the current issue of Industrial & Engineering Chemistry, makes these facts plain.
There is one offensive that never ends: man's battle against...
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