Trees & Diseases

Home | Trees & Diseases

Bursaphelenchus xylophilus

By |2016-12-21T22:29:53+08:00December 19th, 2016|Trees & Diseases|

Bursaphelenchus xylophilus, pine wood nematode

Host and distribution

Pine wood nematode B. xylophilus is spread by Monochamus beetles and with the movement of infested live or sawn wood. B. xylophilus can live in the wood of all species of conifers other than Thuja, Tsuga and Taxus although North American pines in the nematodes’ natural distribution are not […]

Candidatus Liberibacter asiaticus

By |2016-12-21T22:30:51+08:00December 19th, 2016|Trees & Diseases|

Bacterium, Candidatus Liberibacter asiaticus, citrus greening, also known as huanglongbing

Host and distribution

Ca. L. asiaticus is a bacterial pathogen originating in Asia that has recently been introduced into the Americas (1). It causes citrus greening, which now presents an unprecedented threat to citrus production worldwide. It is transmitted by the phloem-feeding citrus psyllid insects (Diaphorina citri). The […]