RT Journal Article
SR Electronic
T1 Recent Advances and Setbacks in Dutch Elm Disease Research
JF Arboriculture & Urban Forestry (AUF)
JO JOA
FD International Society of Arboriculture
SP 136
OP 139
DO 10.48044/jauf.1976.032
VO 2
IS 7
A1 Wilson, Charles L.
YR 1976
UL http://auf.isa-arbor.com/content/2/7/136.abstract
AB There have been a number of setbacks, as well as advancements, in Dutch elm disease (DED) research. The setbacks have resulted from the variability of the DED fungus. Resistance to benomyl has been found in natural populations of the DED fungus. Also, considerable variability has been found in the pathogenicity of the DED fungus, which threatens some of our DED-resistant trees. The most recent advancement in DED research has been an apparent cross between a tetraploid Ulmus pumila and Ulmus americana that yielded viable seed.