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PHYTOPHYLACTICA - 1987 - TRAITS OF CITRUS TRISTEZA VIRUS IMPORTANT FOR MILD STRAIN CROSS PROTECTION OF CITRUS: THE FLORIDA APPROACH. EUROPE 20/07/05 La Commission approuve la majorité des mesures de lutte contre la tristeza des agrumes en Italie. Bruxelles, le 20 Juillet 2005 Aujourd’hui, la Commission Européenne approuvé les mesures des programmes de lutte contre la tristeza des agrumes communiqués par la Campanie et la Basilicate, ainsi que la majorité des mesures du programme de lutte présenté par la Sicile.

EUROPE 20/07/05 La Commission approuve la majorité des mesures de lutte contre la tristeza des agrumes en Italie

En revanche, elle a décidé d’ouvrir une enquête sur une mesure de recherche prévue par le programme de lutte de la Sicile, l’absence de certains détails techniques ne lui permettant pas, à ce stade, d’apprécier la compatibilité de la mesure avec les règles applicables en matière d’aides d’Etat. La tristeza est la maladie virale la plus destructrice des agrumes. Elle provoque la mort des arbres infectés de la plupart des cultivars d'agrumes. Des dizaines de millions d'arbres ont ainsi été détruits, notamment en Amérique du Nord et du Sud et dans certains pays méditerranéens. ONSSA - LA TRISTEZA EST UNE MALADIE QUI MENACE LE PATRIMOINE AGRUMICOLE AU MAROC. CABI - Invasive species compendium - Toxoptera citricida. Datasheet Don't need the entire report?

CABI - Invasive species compendium - Toxoptera citricida

Generate a print friendly version containing only the sections you need. Generate report Identity Top of page Preferred Scientific Name Toxoptera citricida (Kirkaldy) Preferred Common Name black citrus aphid Other Scientific Names Aphis aeglis ShinjiAphis citricidus (Kirkaldy)Aphis nigricans van der GootAphis tavaresi Del. International Common Names. FFTC AGNET 01/02/01 CITRUS TRISTEZA VIRUS: SYMPTOMS AND CONTROL. Introduction Tristeza virus is assumed to have originated in China quite a long time ago.

FFTC AGNET 01/02/01 CITRUS TRISTEZA VIRUS: SYMPTOMS AND CONTROL

Tristeza, known as `quick decline' in the United States, is the most destructive disease of citrus in the western hemisphere and has a worldwide distribution. Less than two decades after tristeza was introduced from Africa into South America in the 1920s, the disease had practically wiped out the citrus industries of Argentina, Brazil, and Uruguay. The virus is also the cause of Hassaku dwarf in Japan. Failure of sweet orange, or grapefruit budded onto sour orange stock, is diagnostic for tristeza virus. Symptoms. PHYTOPATHOLOGIA MEDITERRANEA - Epidemiological situation of Citrus tristeza virus in mainland Portugal. Epidemiological situation of Citrus tristeza virus in mainland Portugal Gonçalo SILVA, Gustavo NOLASCO Abstract This study was conducted to update the occurrence and molecular variability of Citrus tristeza virus (CTV) isolates recently obtained from surveys in different orchards in mainland Portugal.

PHYTOPATHOLOGIA MEDITERRANEA - Epidemiological situation of Citrus tristeza virus in mainland Portugal

The asymmetric PCRELISA typing method based on the coat protein (CP) gene was used to characterize CTV isolates. SERVICIO NATIONAL DE SANIDAD, INOCUIDAD Y CALIDAD AGROALIMENTARIA (MX) - OCT 2002 - CONTROL BIOLÓGICO DEL PULGÓN CAFÉ Toxoptera. Options Méditerranéennes, B n° 65, 2009 - Citrus Tristeza Virus and Toxoptera citricidus: a serious threat to the Mediterranean. Trop. plant pathol. vol.33 no.5 Brasília Sept./Oct. 2008 Comparative epidemiology of citrus tristeza in Cuba and citrus sudden d.

Comparative epidemiology of citrus tristeza in Cuba and citrus sudden death in Brazil Epidemiologia comparativa da tristeza dos citros em Cuba e morte súbita dos citros no Brasil Lochy BatistaI; Renato B.

Trop. plant pathol. vol.33 no.5 Brasília Sept./Oct. 2008 Comparative epidemiology of citrus tristeza in Cuba and citrus sudden d

BassaneziII; Francisco F. LaranjeiraIII. Rev. Bras. Frutic. vol.28 no.2 Jaboticabal Aug. 2006 Spatial distribution of Toxoptera citricida (Kirkaldy) (Hemiptera: Aphidida. Distribuição espacial de Toxoptera citricida (Kirkaldy) (Hemiptera: Aphididae) na cultura de citros1 Spatial distribution of Toxoptera citricida (Kirkaldy) (Hemiptera: Aphididae) in citrus orchards Francisco Ricardo de ToledoI; José Carlos BarbosaII; Pedro Takao YamamotoIII IEng.Agrônomo, mestrando em Agronomia (Produção Vegetal) FCAV-UNESP Jaboticabal.

Rev. Bras. Frutic. vol.28 no.2 Jaboticabal Aug. 2006 Spatial distribution of Toxoptera citricida (Kirkaldy) (Hemiptera: Aphidida

Via de acesso Prof. Paulo Donato Castellane, xico.toledo@agrofito.com.br IIProfessor Titular do Departamento de Ciências Exatas, FCAV-UNESP, Jaboticabal. O estudo da distribuição espacial de pragas é fundamental para elaboração de planos de amostragem para o uso do manejo integrado de pragas. Termos para indexação: praga, pulgão-preto, Citrus sinensis, amostragem, distribuição binomial negativa.

The study of insects' spatial distribution is fundamental to elaborate potential sampling plans to be used in integrated pest management. Index terms: pest, brown citrus aphid, Citrus sinensis, sampling, negative binomial distribution. Se , USDA - 2009 - The brown citrus aphid, Toxoptera citricida. HortResearch Publication - Citrus Tristeza Virus. - HortResearch, Kerikeri Tristeza represents one of the biggest threats to citrus production around the globe.

HortResearch Publication - Citrus Tristeza Virus

The severity of the strains can change, and the tolerance of certain scion/rootstock combinations to this virus can no longer be taken for granted. Careless introduction of severe strains, such as the orange stem pitting strain of tristeza recently found in Queensland, is a constant risk. There are more than 30 virus and virus-like diseases of citrus known in the world, of which citrus tristeza virus (CTV) is arguably the most destructive. In 1981, the total world loss attributable to this disease was estimated at 50 million trees (1) .

The most economically important symptom is the quick decline or death of orange, grapefruit and mandarin trees on sour orange rootstock. CTV apparently originated in Asia where it existed for centuries unrecognised, possibly because the commonly grown citrus cultivars were highly tolerant.