Public domain
Public Health Service Investigation Commission to the China-Burma Highway, Chefang Valley, China. Drainage ditch from rice field. Minimus will breed along either bank where the water is moving, but not in pools where water vegetation grows
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Credit linePublic Health Service Investigation Commission to the China-Burma Highway, Chefang Valley, China. Drainage ditch from rice field. Minimus will breed along either bank where the water is moving, but no. 1939-01-01. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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Public Health Service Investigation Commission to the China-Burma highway, Chefang (vicinity), China. Small irrigation ditch in the rice fields formerly had anopheles minimus mosquitoes breeding in pockets all along it. It has been rechanneled, as indicated by the new mud piled up on both sides. But
Public Health Service Investigation Commission to the China-Burma highway, Chefang (vicinity), China. Paris green dusting
Fort Morton, Petersburg, Virginia, from the southeast
Public Health Service Investigation Commission to the China-Burma highway, Chefang (vicinity), China. Oiling anopheles minimus breeding places
Chefang Valley, China. The main drainage ditch running through irrigated rice fields and showing a wide seepage area on either side. Anopheles minimus breeds in the gently moving water, breed for several feet out from the dike. In the middle area, as where the water buffalo is standing ankle deep in
Fort Morton, Petersburg, Virginia, from the southeast