Miller. Ardmore and Southern Weed Science Society. 1994 and 1999. Poison Ivy, Oak, and Sumac Information Center Jim Dunphy, author and publisher. 1999 - 2009. Poison Ivy Wikimedia Foundation, Inc. April 13, 2009. The Effect of Fire on Fuel Loads and Pest Species Jerry L. Faulkner, Edward E. C. Clebsch, and William