Considerations when using Ethephon for Suppressing Dwarf and Leafy Mistletoe Infestations in Ornamental Landscapes

Article Figures & Data

Table 1.

Ethephon has been tested on the following coniferous/dwarf mistletoe (A) and broadleaf/leafy mistletoe (B) host/parasite combinations.

Taxon	Host	Location	References
(A) Arceuthobium
americanum	Pinus banksiana	Man.	3
	Pinus contorta	CO, CA	7,30,31,36
campylopodum	Pinus ponderosa	CA, ID	9,32,33
douglasii	Pseudostuga menziesii	OR	32
laricis	Larix occidentalis	OR	32
pusilium	Picea mariana	MN	26,27
vaginatum	P. ponderosa	CO,NM	4,11,15,16,17,31
(B) Phoradendron
macrophyllum	Fraxinus velutina	CA	23,24,25
	Gleditsia triacanthos	CA	23,24,25
macrophyllum	Fraxinus moraine	CA	10,18
(tomentosum)	Populus sp.	CA	10
	Juglans hindsii	CA	18
tomentosum	Ulmus crassifolia(?)	TX	41
	Quercus stellata(?)	TX	41
villosum	Quercus douglasii	CA	23,24,25