Allelopathic terpenes are those produced by a plant that affect the germination, growth, propagation, and survival of cohabitant plants. In effect, these are the terpenes of plant chemical warfare. Terpenes and terpenoids have been shown to act as allelopathic agents in many different plants, and in some cases these isoprenoid compounds can affect plants of the same species.
This information was taken from The Big Book of Terps. To order a copy, please email email@example.com