(Illegal Biological Agents) "While mycoherbicides contain chemical toxins, they are actually covered under the [United Nations] Biological Weapons Convention (BWC) rather than the Chemical Weapons Convention.64 Given that mycoherbicides are biological agents it has been argued that their use, especially in foreign countries, would be illegal under the BWC."

Source

Bigwood, Jeremy, "Repeating the Mistakes of the Past: Another Mycoherbicide Research Bill," Drug Policy Alliance (New York, NY: March 2006), p. 8.
http://www.drugpolicy.org/doc…