Field efficacy evaluation of pelleted strychnine baits for control of mountain beavers (Aplodontia r...

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" Field efficacy evaluation of pelleted strychnine baits for control of mountain beavers (Aplodontia rufa) "
Campbell, D. L.; Farley, J. P.; Engeman, Richard M.

Document Type	:	AL
Record Number	:	943021
Doc. No	:	LA2kv2j96t
Language of Document	:	English
Main Entry	:	Campbell, D. L.; Farley, J. P.; Engeman, Richard M.
Title & Author	:	Field efficacy evaluation of pelleted strychnine baits for control of mountain beavers (Aplodontia rufa) [Article]\ Campbell, D. L.; Farley, J. P.; Engeman, Richard M.
Title of Periodical	:	Proceedings of the Vertebrate Pest Conference
Volume/ Issue Number	:	15
Date	:	1992
Abstract	:	Radio-telemetry evaluation of several concentrations of pelleted strychnine bait in earlier tests indicated moderate to good bait efficacy for control of mountain beavers. Evaluation of operational baiting with 0.0%, 0.15%, 0.50%, and 0.90% strychnine bait pellets was made in 1990 and 1991 on 24 reforestation units in Washington and Oregon. Results of baiting monitored with burrow activity indicators showed there was little difference in reduction of activity among treatments. Chemical assays and pen bioassays showed baits were lethal, but ingestion was often delayed or baits were discarded. Reexamination of test plots 1 year after baiting showed no detectable change in activity among treatments.