• Purdue University Turfgrass program:
http://www.agry.purdue.edu/turf/

• Purdue University Extension Entomology
(Pest Information):
http://www.extension.entm.purdue.edu/

• Purdue has a very good article on dealing with moles:
http://www.extension.entm.purdue.edu/publications/ADM-10.pdf

• Purdue University has good information about white grubs: http://www.extension.entm.purdue.edu/publications/E-259.pdf