Reader disagrees with use of chemical
Oct. 14's Clarion Refuge Notebook on "Pike Stoppers" needs clarification regarding the use of the toxin rotenone to kill unwanted pike in lakes and streams.
1. Rotenone at undetectable levels is used in laboratories to cause Parkinson's disease in lab rats. (Obviously there have been no lab tests on humans to gauge human levels needed to induce Parkinson symptoms.)