抄録
It was confirmed by experiment that the eggs of Bothriocephalus opsariichthydis YAMAGUTI, 1934 collected artificially were killed rapidly by drying, freezing, and ultraviolet rays. Eleven chemicals were tested for ovicidal effect. Among them two chlorine compounds were found to be effective; that is, 3.1 ppm of sodium dichloroisocyanurate and 9.0 ppm of higher bleaching powder killed all eggs.
