I live on a lake, and I have about 40 crayfish holes in my yard on the lake side. Every time I mow the lawn, I have big dirt clumps, about 2 - 3 inches high, and it makes the yard look like crap. I can pick these things up every day, but they will be back tomorrow, just as tall. I have 1" holes everywhere out there!! Any suggestions? Captain Jay Wanna kill these ads? We can help!