I am a plant pathologist in Maryland who has been working with a Phytophthora associated decline of European beech. I have several Phytophthora isolates I have isolated from mature declining beeches and I am interested in conducting some pathogenecity trials on European beech seedlings (probably just Copper beech to start). I am trying to determine if I should start the E. beech seedlings from seed or if I should graft them (to better reflect a nursery specimen). I am interested to know what types of rootstock are used in grafting Copper beech and other Fagus sylvatica cultivars. Also I am interested in learning more about the attempts to graft Fagus sylvatica to Fagus grandifolia rootstock (e.g. successful or incompatible?) Can anyone help me???