Huanglongbing
Guides
Diaphorina citri
Asian citrus psyllid, ACP
Diaphorina citri, the Asian citrus psyllid, is a small hemipteran insect and one of two confirmed vectors of Huanglongbing (HLB), also known as citrus greening disease, caused by the bacterium Candidatus Liberibacter asiaticus. Native to southern Asia, it has spread to citrus-growing regions worldwide including the Americas, Middle East, and Oceania, posing a severe threat to global citrus production. The insect feeds on phloem sap of new citrus growth and has become the focus of intensive biological control, monitoring, and genomic research efforts due to its economic impact.
Liviidae
plant lice, psyllids, jumping plant-lice
Liviidae is a family of plant-parasitic hemipterans commonly known as plant lice or jumping plant-lice. The family comprises more than 20 genera and approximately 370 described species worldwide. Members are characterized by their ability to jump and their association with vascular plants as phloem-feeders. The family includes significant agricultural pests, most notably Diaphorina citri (Asian citrus psyllid), the primary vector of citrus greening disease (Huanglongbing). Liviidae was formerly treated as Triozidae, and recent taxonomic revisions recognize three monophyletic subfamilies: Euphyllurinae, Liviinae, and the monotypic Neophyllurinae.
Tamarixia
Tamarixia is a genus of small parasitoid wasps in the family Eulophidae, primarily known as parasitoids of psyllids (jumping plant lice, superfamily Psylloidea). The genus was established by Mercet in 1924 and contains approximately 50 described species distributed worldwide. Most species are ectoparasitoids, though at least one species has been recorded as an endoparasitoid. Several species, particularly T. radiata and T. triozae, are important biological control agents used in integrated pest management programs for citrus and solanaceous crops.