tHIS PAPER HAS OMMITTED SEVERAL BITS OF WORK WE HAVE DOME ON FORAGES INCLUDING ALL THE COSGROCE WORK ON SPECIES SCREENING IN VITRO AND THE PASR AND CURRENT HIGH SUGAR GRASS WORK 
i have problemswith the hypothesis re forage species proposed her as only something like 4 percent of land area is renewed each year and so any progress will be slow species also are not persistant and revert to wild type over time. Also in hill country where the majority of sheep and beef are the renew pastures even less frequently and so species as a mitigation strategy is even less useful. This needs to be stated for NZ conditions. This may not be the case for other countries. Happy to discuss. 