Synergism in Pyrethrum-Piperonyl Cyclohexenone Roach Powders

Author: PIQUETT P. G.   NELSON R.H.   McGOVRAN E. R.  

Publisher: Entomological Society of America

ISSN: 1938-291X

Source: Journal of Economic Entomology, Vol.40, Iss.4, 1947-08, pp. : 577-578

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