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First Report of the Spittlebug Lepyronia quadrangularis and the Leafhopper Latalus sp. as Vectors of the Elm Yellows Associated Phytoplasma, Candidatus Phytoplasma ulmi in North America

Citation
Rosa et al. (2014). Plant Disease 98 (1)
Names
Ca. Phytoplasma ulmi
Abstract
Elm yellows (EY) is a lethal disease of American (Ulmus americana L.) and other elm species (1). On the Pennsylvania State University campus, EY, together with Dutch elm disease, has killed 82 of about 400 mature elms since 2007, the year of first EY detection. Candidatus Phytoplasma ulmi, associated with EY, has been reported to be transmitted by the whitebanded elm leafhopper Scaphoideus luteolus Van Duzee, the meadow spittlebug Philaenus spumarius L., and the leafhopper Allygus atomarius Fab

Identification of Zeoliarus oppositus (Hemiptera: Cixiidae) as a Vector of ‘Candidatus Phytoplasma australiense’

Citation
Winks et al. (2014). Plant Disease 98 (1)
Names
Ca. Phytoplasma australiense
Abstract
‘Candidatus Phytoplasma australiense’ is associated with a number of plant diseases in New Zealand. The only known vector of this pathogen was Zeoliarus atkinsoni, a planthopper considered to be monophagous on New Zealand flax (Phormium spp.). The work carried out shows that Z. oppositus, which is polyphagous, is able to vector ‘Ca. P. australiense’ to both Coprosma robusta (karamu) and Cordyline australis (New Zealand cabbage tree). Although transmission was achieved to both these species, the

Viability of ‘Candidatus Liberibacter asiaticus’ Prolonged by Addition of Citrus Juice to Culture Medium

Citation
Parker et al. (2014). Phytopathology® 104 (1)
Names
Ca. Liberibacter asiaticus
Abstract
Huanglongbing, or citrus greening disease, is associated with infection by the phloem-limited bacterium ‘Candidatus Liberibacter asiaticus’. Infection with ‘Ca. L. asiaticus’ is incurable; therefore, knowledge regarding ‘Ca. L. asiaticus’ biology and pathogenesis is essential to develop a treatment. However, ‘Ca. L. asiaticus’ cannot currently be successfully cultured, limiting its study. To gain insight into the conditions conducive for growth of ‘Ca. L. asiaticus’ in vitro, ‘Ca. L. asiaticus’

Survey and Detection of ‘Candidatus Liberibacter asiaticus’ in a Citrus Nursery Facility in South Texas

Citation
Alabi et al. (2014). Plant Health Progress 15 (4)
Names
Ca. Liberibacter asiaticus
Abstract
Huanglongbing (HLB) disease, associated with ‘Candidatus Liberibacter asiaticus’ (CLas), is primarily spread via infected citrus nursery trees and by infective Asian citrus psyllid, the insect vector. Recently, the Texas Department of Agriculture initiated regulations requiring commercial and retail citrus nurseries in Texas to transition from traditional open-field to enclosed facilities with insect-resistant screens to mitigate the risk of nurseries serving as sources of CLas. Although severa