CTENARYTAINA EUCALYPTI PDF

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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Biology and Ecology Top of page The current status of the blue gum psyllid has been thoroughly reviewed by Hodkinsonespecially regarding biocontrol efforts. Lanfranco D; Dungey HS, Burckhardt, ; EPPO, However, Dahlsten et al. The body is yellowish, dtenarytaina the dorsal derm consists of blue-black sclerites over most of the body.

Farm Forestry New Zealand

Forestry pests Forestry diseases Pests of timber Pests and diseases by tree species Tree and wood decay fungi Unwanted pests and diseases Beneficial organisms. Taylor and Burckhardt et al. Insecticidal sprays were ineffective and costly. This has become especially true since aboutas new eucalypt plantations have been planted.

Journal of the Australian Entomological Society, 26 3: Psyllidaeplaga del eucalipto en Argentina. How to cite this article. Psylloidea from Lophostemon confertus R. Numerous authors allude to its occasional devastating effects. California Agriculture, 52 1: They provide pulp and… Forest industry eucaoypti damaged by mobilisation of forest harvest residues Sunday, May 27, The successful prosecution of a forest management company by the Marlborough District Council has been endorsed by the Forest Owners Association.

Morgan suggested that eucalypts grown eucallypti commercial nurseries in South Australia had been transferred to many exotic places. Revista Chilena de Entomologia, Bugguide is hosted by: Myricaceae affects ovipositonal and settling preferences of Ctenarytaina eucalypti and C.

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Right tree, right place, right purpose”. Biocontrol News Inf Contributed by Eddie Dunbar on 4 June, – 3: Encyrtidae em Ctenaryhaina globulus no Rio Grande do Sul. Noyes J S Encyrtidae Ctenwrytaina On some species of Psyllidae in New Zealand.

Psylloidea of South Australia. Chilean Forestry News, No.

NZ Farm Forestry – Ctenarytaina eucalypti, Blue-gum psyllid

Some plantations were actually destroyed by the growers because of the cost of treatments and losses due to ruined products. Dedicated naturalists volunteer their time and resources here to provide this service. This parasitoid has been shown to be highly efficient in controlling this psyllid species, making unnecessary the use of any other control method. Alma A; Arzone A, Bull Soc Entomol Suisse Services on Demand Journal.

A closely related species, Ctenarytaina spatulata, commonly occurs on the same trees, at least in California, USA and Brazil. This tends to take on a greyish cast because the white flocculent wax secretions are produced over the body by glands on the dorsal and lateral surfaces of the abdomen. New records of jumping plant-lice from Hungary Hemiptera: The blue gum psyllid belongs to the family Spondyliaspidae, one of approximately seven families within the Psylloidea.

Ctenarytaina eucalypti (blue gum psyllid)

In this study, interviews with plantation owners suggested that the size of the plantings of Eucalyptus pulverulenta ranged from 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. Very little upkeep was needed ctenagytaina few pest problems occurred before the blue gum psyllid was introduced. Means of Movement and Dispersal Top of page The blue gum psyllid has moved across the globe with apparent ease.

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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.

Ctenarytaina eucalypti

eucalypyi Outside Australia it generally should not be confused with any other species on eucalyptus. The John Hopkins University Press. The adult is green to tan, but with dark-brown to black head eucaly;ti thorax dorsums. Most eucalypt species were planted in California from seed in the early years Doughty, ; Paine and Millar,and so few pests had been introduced into the state.

Later establishment records include Chile Lanfranco and Dungey, ; Thomson et al. When the blue gum psyllid was introduced, heavy populations and heavy damage resulted.

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.

Biological control of the blue gum psyllid proves economically beneficial. Proximity of two new enemies of Eucalyptus in Spain.

In addition, the nymphs produce a large amount of honeydew, which interferes with the harvesting, preparation and packaging of the product. The blue gum psyllid prefers immature foliage for oviposition and development of the nymphs. Eucaly;ti connexa, Vespula germanica, and Camponotus distinguendus in Chile Saiz et al.

Biological control of the blue gum psyllid Ctenarytaina eucalypti Maskell Ctenarytaiina, Psyllidae by the encyrtid Psyllaephagus pilosus Noyes Hymenoptera, Encyrtidae a success not only in California and Western Europe but also in Saxony.

Symptoms Top of page Blue gum psyllid injury includes leaf discoloration, rolling of leaves and twig distortion, and in heavy infestations, severe twig dieback results Hodkinson,

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