THE RESPONSE OF POPILLIA JAPONICA TO LIGHT AND THE WEBER-FECHNER LAW.
Light and a temperature above 23 degrees C. are necessary for the activity of Popillia. The effect of light as indicated by the rate of locomotor response is related to light intensity according to Fechner's expression of Weber's law.
Moore
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Riverton Entomological Laboratory, Riverton, N. J.
Cole
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