In North America the disease is transmitted from infected to healthy trees by the whitebanded<unk>  leafhopper (Scaphoideus luteolus Van Duzee), the meadow spittlebug (Philaenus spurarius) and by another leafhopper (Allygus atomarius), although other insects are also suspected of being vectors. Transportation of nursery trees is another way for<unk>  to be spread over long distances. As leafhoppers move very slowly so movement of<unk>  has been slow.
Elm yellows
Saber shin
Jaipur foot
Reflex hammer
Squawk 
Clubfoot
Greenpilot
Lockets