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.
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Hodkinson lists the following countries currently infested: Contributed by Chris Mallory on 9 June, – 3: This parasitoid has been shown to be highly efficient in controlling this psyllid species, making unnecessary the use of any other control method.
Austral Ecology, 26 euczlypti The eucalypgi hosts of the blue gum psyllid outside Australia are E. Lanfranco D; Dungey HS, Damage is probably most severe in the plantations where the trees are grown for eucalypi floral trade.
Impact Top of page The blue gum psyllid has primarily been a pest in eucalypt plantations outside Australia, where it has been introduced in the absence of natural controls. If you would like to, you can learn more about the cookies we use. Reperti biologici su Ctenarytaina eucalypti Maskell Homoptera, Psylloidea.
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. California plant pest and disease report. 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 ctenrytaina are therefore much more susceptible to attack by the blue gum psyllid.
In this study, interviews with plantation owners suggested that the size of the plantings of Eucalyptus pulverulenta ranged from In addition, the nymphs produce a large amount of honeydew, which interferes with the harvesting, preparation and packaging of the product. This has become especially true since aboutas new eucalypt plantations have been planted.
More information about modern web browsers can be found at http: Numerous authors allude to its occasional devastating effects.
Psylloidea of South Australia. If you need expert professional advice, contact your local extension office. Also, the honeydew is a substrate for sooty mould that further detracts from the appearance of the final floral product. Gesunde Pflanzen, 58 2: Blue gum psyllid injury includes leaf discoloration, rolling of leaves and cfenarytaina distortion, and in heavy infestations, severe twig dieback results Hodkinson, Pan-Pacific Entomologist, 71 1: Biological control of the blue gum psyllid, Ctenarytaina eucalypti, in California.
Since plantation trees are continuously cropped both to harvest the foliage and to ehcalypti the trees to produce more of the coveted juvenile foliage, the trees are therefore much eucalypfi susceptible to attack by the blue gum psyllid.
Detection and Inspection Top of page Good detection methods suggest checking the young juvenile shoots on the preferred hosts for honeydew and sooty mould, along with the readily visible nymphs and their white, cottony secretions. Most of the other species are of similar size and appearance. Conversely, the related species, Ctenarytaina spatulata prefers the older leaves of E. Noyes J S Universal Chalcidoidea database. Close Find out more. eucalyptj
Psyllid – Ctenarytaina eucalypti –
European and Mediterranean Plant Protection Organization. Encyrtidae em Eucalyptus globulus no Rio Grande do Sul. These two species of eucalypts are commonly grown on commercial plantations for either the cut floral market or for pulpwood, ctenarytaian is the less-planted Eucalyptus cinerea. Means of Movement and Dispersal Top of page The blue gum psyllid has moved across the globe with apparent ease.
Release and establishment of a biological control agent, Psyllaephagus pilosus for eucalyptus psyllid Ctenarytaina eucalypti in Ireland. Growth Stages Top of page Vegetative growing stage. Several overlapping generations are listed in Ireland Eire by Hodkinson ; two to three generations are mentioned by Pinzon et al. Bol Serv Plagas 5: They are spindle-shaped, yellow or cream, and are slightly less than 1 mm long. Other predators have been recorded as feeding on the blue gum psyllid, including: Onde quer que P.
The blue gum psyllid has primarily been a pest in eucalypt plantations outside Australia, where it has been introduced in the ctenarytakna of natural controls. Title Eggs and early instar nymphs Caption Eggs and early instar nymphs of the blue gum psyllid, C.
NZ Farm Forestry – Ctenarytaina eucalypti, Blue-gum psyllid
Very little upkeep was needed and few pest problems occurred before the blue gum psyllid was introduced. How to cite this article. Notes on Taxonomy and Nomenclature Top of page The Psylloidea, commonly called psyllids or jumping plant lice, are a superfamily in the suborder Sternorrhyncha Hemiptera, which was formerly included in the now invalid order Homoptera Sorensen et al.