New data on quarantine pests
By browsing through the literature, the EPPO Secretariat has extracted the following new data concerning quarantine pests.
- New geographical records
Peach latent mosaic viroid (quarantine status under review) has been detected in a nectarine tree with abnormal growth (reduced leaf production, rosetting) in South Australia. This is the first report of peach latent mosaic viroid in Australia. Review of Plant Pathology, 78(6), p 542 (4135).
In southern China, Phialophora cinerescens (EPPO A2 quarantine pest) and Fusarium oxysporum f.sp. dianthi are the main pathogens of carnations. This is the first report of P. cinerescens from China. Review of Plant Pathology, 78(4), p 396 (3004).
Phyllocnistis citrella was detected for the first time in Yugoslavia in 1995. It was found on citrus orchards on the coast of Montenegro. Review of Agricultural Entomology, 87(5), p 631 (4740).
Xanthomonas axonopodis pv. dieffenbachiae (EPPO A1 quarantine pest) causes bacterial blight disease on Anthurium in Taiwan. This is the first report of X. axonopodis pv. dieffenbachiae in Taiwan. Review of Plant Pathology, 78(4), p 396 (3009).
- Detailed records
In Brazil, Anastrepha fraterculus (EPPO A1 quarantine pest) occurs in the state of Minas Gerais. It was found during surveys done in commercial orchards of guavas (Psidium guajava). Review of Agricultural Entomology, 87(5), p 632 (4752).
In Brazil, Ceratitis capitata (EPPO A2 quarantine pest) was found for the first time in the eastern Amazon, in the State of Pará. It was observed on Averrhoa carambola (carambola) and Malpighia glabra fruits in February 1997. Review of Agricultural Entomology, 87(6), p 773 (5814).
Helicoverpa zea (EPPO A1 quarantine pest) occurs in the province of Jujuy in Argentina, and causes damage to maize. Review of Agricultural Entomology, 87(6), p 746-747 (5601).
Liriomyza bryoniae (EU Annex I/A2) occurs on protected tomato crops in Jersey. Review of Agricultural Entomology, 87(5), p 618 (4651).
Stone fruit trees from western Slovakia (Prunus armeniaca, P. domestica, P. persica and P. cerasifera) showing symptoms of plum pox potyvirus (PPV - EPPO A2 quarantine pest) were tested by PCR. Results demonstrated the prevalence of PPV-M strains in the tested samples. Review of Plant Pathology, 78(4), p 377 (2846).
In Poland from 1990 to 1994, a survey on scale insects was conducted in fruit orchards of the Lublin area. As a result, 11 scale species were found, including Quadraspidiotus perniciosus (EPPO A2 quarantine pest). In PQR, this pest was previously considered as not established. Review of Agricultural Entomology, 87(5), p 621 (4668).
In Venezuela, Ralstonia solanacearum (EPPO A2 quarantine pest) was isolated from potato tubers and stems from the state of Lara. Review of Plant Pathology, 78(4), p 364 (2751).
Strawberry vein banding ?caulimovirus (EPPO A2 quarantine pest) was detected by PCR and dot-blot hybridization in samples of wild strawberry plants from south-eastern Serbia (YU). This report in Yugoslavia confirms earlier observations based on symptoms. Review of Plant Pathology, 78(4), p 378 (2855).
In Brazil, Xanthomonas axonopodis pv. citri (EPPO A1 quarantine pest) was found to be associated with Phyllocnistis citrella damage in the States of Paraná, Rio Grande do Sul and São Paulo. It was observed that citrus canker pustules were often located over and along the entire length of larval galleries on citrus leaves and branches. This report confirms earlier records of citrus canker in Rio Grande, and provides new detailed information on the occurrence of P. citrella in Paraná and Rio Grande do Sul. Review of Plant Pathology, 78(5), p 460 (3511).
- New host plants
In Brazil, tomato is reported as a new host plant of chrysanthemum stem necrosis tospovirus. Review of Plant Pathology, 78(4), p 368 (2778).
Ralstonia solanacearum (EPPO A2 quarantine pest) race 1 biovar 1 was isolated from diseased pothos cuttings (Epipremnum aureum) imported to Florida (US) from Costa Rica. Review of Plant Pathology, 78(6), p 565 (4312).
Sources
EPPO Secretariat, 1999-06.
Review of Agricultural Entomology, 87(4-6). April to June 1999.
Review of Plant Pathology, 78(4-6). April to June 1999.