Ctenarytaina eucalypti Eucalyptus psyllid. Family: Psyllidae A very distinctive species, and the only member of its genus known to be established in the UK. Eucalypt psyllids put their feet up. From Forest Health News , April The blue gum psyllid, Ctenarytaina eucalypti, fancies the juvenile leaves of its host. Ctenarytaina eucalypti is a species from southeast Australia (Santana & Burckhardt ) that has been introduced into Europe and South Africa ( Ouvrard.
|Published (Last):||17 April 2016|
|PDF File Size:||7.37 Mb|
|ePub File Size:||14.24 Mb|
|Price:||Free* [*Free Regsitration Required]|
Biological control of Ctenarytaina eucalypti Hem.: Mercier L; Poisson R, Biocontrol News and Information, 20 4: Click the contributor’s name for licensing and usage information.
Notes on Natural Enemies Top of page In California and elsewhere, the introduction of the natural enemy Psyllaephagus pilosus, an Encyrtid wasp, has resulted in the effective classical biological control of the blue gum psyllid Dahlsten et al.
Since plantation trees are continuously cropped both to harvest the foliage and to force the trees to produce more of the coveted juvenile foliage, the trees are therefore much more susceptible to attack by the blue gum psyllid.
European and Mediterranean Plant Protection Organization.
Eucalyptus are hosts of several psyllid species. New South African psyllids. Detection and Inspection Top of page Good detection methods suggest checking the young juvenile shoots eucwlypti the preferred hosts for honeydew and sooty mould, along with the readily visible nymphs and their white, cottony secretions.
Adults These are approximately 2 mm long from the head to the wing tips. Click the contributor’s name for licensing and usage information.
Farm Forestry New Zealand
The blue gum psyllid prefers immature foliage for oviposition and development of the nymphs. However, the psyllid is ctenaryytaina flourishing in warmer areas, particularly in the temperate areas around the Mediterranean Sea and in California, USA. Some of the ctenarytaona characteristics that separate the genus Ctenarytaina from other psyllid genera include: When several references are cited, they may give conflicting information on the status.
Several studies have been carried out on niches occupied by the blue gum psyllid in host trees Brennan et al. Blue gum psyllid, biological control.
Dedicated naturalists volunteer their time and resources here to provide this service. Gesunde Pflanzen, 58 2: Close Find out more. The Monterey County Farm Advisor who first collected blue gum psyllid in California in a nursery suggested that some of the affected plants may have come directly from Australia, and that possibly they were in violation of Federal and State quarantine laws. Brown in Australia and California.
Fortunately the major parasite for this species is also able to survive cold conditions Hodkinson, ; Chauzat et al. All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License. Journal of the Australian Entomological Society, 26 3: Other eucalypt-feeding psyllids have also been introduced into other countries, such as Blastopsylla occidentalis, Cryptoneossa triangula, and the two lerp-forming psyllids, Glycaspis brimblecombei and Eucalyptolyma maideni.
The Guides are a joint venture between the forest sector and MPI and were initiated as… Scion strategy to Austral Ecology, 26 5: Datasheet Ctenarytaina eucalypti blue gum psyllid. In general, it is yellowish, not black, and the nymphs would not be found on the juvenile foliage. Upcoming Events Discussioninsects and people from the BugGuide Gathering in VirginiaJuly Photos of insects and people from the gathering in WisconsinJuly Photos of insects and people from the gathering in VirginiaJune Bol Serv Plagas 5: Life history and phenology of the eucalyptus psyllid, Ctenarytaina eucalypti in Ireland.
Bulletin of Entomological Research, 92 2: Ctenarytaina eucalypti Maskell Hemiptera, Psylloidea new for central Europe and observations on the psyllid fauna of Eucalyptus. Hodkinson lists 21 susceptible species of eucalypts in the British Isles. The species was described from specimens collected from Eucalyptus globulus in New Zealand.
Ctenarytaina eucalypti (Maskell, )
The blue gum psyllid, Ctenarytaina…. Cerambycidae and Ctenarytaina eucalypti Homoptera: When the blue gum psyllid was introduced, heavy populations and heavy damage resulted.
Hodkinson suggested that a second major introduction of blue gum psyllid into the British Isles occurred when eucalypts were recently brought into Britain directly from Australia for the Liverpool Festival. Both Eucalyptus globulus and Euclypti pulverulenta are the primary trees used in ctenarytina floral trade. Description Top of page Eggs These are laid singly and randomly in crevices along the leaf petioles, usually perpendicular to the plant surface.
In Brazil, this pest has been observed in the state of Parana, and inctenarytaia was found causing damage to plantations of E. Several overlapping generations are listed in Ireland Eire by Hodkinson ; two to three generations are mentioned by Pinzon et al. It was also introduced into France and South Africa about the same time Hodkinson, Spondyliaspidinae established in three other countries.
Biological control of the blue gum psyllid, Ctenarytaina eucalypti, in California. Insecticidal sprays ctsnarytaina ineffective and costly. The blue gum psyllid has six life stages: Damage is probably most severe in the plantations where the trees are grown for the floral trade. Noyes J S Encyrtidae Insecta: