How do I get rid of crayfish in my lawn?

Gardens & Landscapes April 09, 2008 Print Friendly and PDF
There is no good answer. Crayfish chimneys in lawns are associated with a high water table or heavy, low-lying soils around ponds and streams. Problems are worse in wet seasons or years. Anything that reduces soil moisture or water retention, such as draining and tiling, may help. In areas with a high water table, there is not an alternative. There are no pesticides registered for crayfish control because of concerns about ground water contamination.

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This work is supported by the USDA National Institute of Food and Agriculture, New Technologies for Ag Extension project.