“When it becomes stressed from drought, johnsongrass can produce prussic acid — also known as hydrocyanic acid — or can accumulate nitrate, both of which are very toxic to livestock,” Jennings said.
Tokyo (Jiji Press)–Chisako Kakehi, a 78-year-old death-row inmate known as a “black widow” who was convicted in serial murders using hydrocyanic acid in western Japan, died at the Osaka ...
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