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NW Washington | The economic of using a rodenticide are usually not good, and it may or may not be a labeled use. Their population tends to by cyclical, numbers get high then they die off for one reason or the other. They are problems for no-till winter wheat growers too.
Encourage predators and don't shoot the coyotes. This extension bulletin has info on controlling the buggers.
http://icwdm.org/handbook/rodents/ro_b177.pdf | |
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Meadow voles
