1976, D.A. Nordlund and W.J. Lewis. Terminology of chemical releasing stimuli in intraspecific and interspecific interactions. Journal of Chemical Ecology 2:211-220. (http://www.tifton.uga.edu/lewis/ab169.htm):
Apneumone--A substance emitted by a nonliving material that evokes a behavioral or physiological reaction adaptively favorable to a receiving organism, but detrimental to an organism, of another species, which may be found in or on the nonliving material.
