Types of Mycoherbicides
"There are two mycoherbicide candidates that have been proposed for use against illicit drug crops. One of these is Fusarium oxysporum and the other is Pleospora papaveracea. Both are toxic molds that attack their targets ('hosts') through the secretion of cell-dissolving chemicals called mycotoxins."
Bigwood, Jeremy; Hanson, Heather; Isacson, Adam; Piper, Bill; Stevenson, Trevor; Tree, Sanho; and Walsh, John, " Evaluating Mycoherbicides for Illicit Drug Crop Control: Rigorous Scientific Scrutiny is Crucial," Drug Policy Alliance, et al (Washington, DC: February 27, 2007), p. 3.