I bought this to spray my yard with and noted that the label has specific instructions for woodpile insect management. Works on termites, carpenter ants, ticks, and a whole lot more. I will save some reading for ya'll and tell you it says to spray the ground around and underneath where you will be stacking or storing wood. $42 for enough concentrate to make 100 gallons. Can be used indoors as well.
http://www.kellysolutions.com/erene...nsecticide___089363__7_15_2010_9_51_01_AM.pdf
http://www.kellysolutions.com/erene...nsecticide___089363__7_15_2010_9_51_01_AM.pdf