Journal of the Department of Agriculture, Western Australia, Series 3


Western Australia, Poison sedge, Cyanogenesis, Carnamah

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During the afternoon of April 14 of this year, a flock of 800 sheep on a property in the Carnamah district was turned into an old stubble paddock which had been spelled for two months, after having carried the same sheep for the previous paddock, death having apparently occurred suddenly and without any struggling.

The rapidity and severity of the losses, together with the lack of observed symptoms, suggested that the trouble had been due to a cyanogenetic plant (a plant capable of killing stock by the liberation of prussic acid after ingestion.)