Myrtaceae-pest
Guides
Ctenarytaina
eucalyptus psyllids, blue gum psyllids
Ctenarytaina is a genus of jumping plant lice (psyllids) in the family Aphalaridae, native to Australia and associated primarily with Myrtaceae. The genus includes economically significant pest species that have been introduced to multiple continents, particularly Ctenarytaina eucalypti, which threatens eucalyptus forestry and ornamental foliage industries. Several species have established adventive populations outside their native ranges, with documented impacts in Ireland, Chile, Colombia, and other regions. The genus exhibits strong host plant associations, with most species being monophagous or narrowly oligophagous on Eucalyptus, Syzygium, and other Myrtaceae.