New data on quarantine pests and pests of the EPPO Alert List
By browsing through the literature, the EPPO Secretariat has extracted the following new data concerning quarantine pests and pests included on the EPPO Alert List. The pest status in the areas concerned is indicated in bold and according to the terms of the ISPM No. 8.
- New geographical records
Phyllocnistis citrella is present in citrus orchards of the departement of Meta, in Colombia. Present: no details. Review of Agricultural Entomology, 88(5), p 569 (4137 ; 4138).
Ralstonia solanacearum (EPPO A2 quarantine pest), race 1 biovar 4 was isolated from wilted tomato plants in Saudi Arabia (Al-Qassim region). The EPPO Secretariat had previously no data on the situation of this bacterium in Saudi Arabia. Present: no details. Review of Plant Pathology, 79(5), p 501 (3741).
Rhagoletis completa was found for the first time in Slovenia in 1997. The walnut husk fly was observed in the Nova Gorica region and Vipava valley, probably coming from Italy. The pest then spread in some regions of west Slovenia along the Italian border. Considering the spread of the pest in 1997/98, its eradication was not considered feasible. Measures were envisaged to control R. completa and limit its spread. Present: only in some areas. Review of Agricultural Entomology, 88(5), p 571-572 (4158 ; 4161).
Thrips palmi and Scirtothrips dorsalis (both EPPO A1 quarantine pests) are recorded for the first time in Côte d’Ivoire. They were found near Bouaké on cotton crops. In particular, S. dorsalis caused serious damage. Present: only in some areas. Review of Agricultural Entomology, 88(5), p 581 (4236).
- Detailed records
Anthonomus signatus (EPPO A1 quarantine pest) occurs in the state of New York, USA. Present: no details. Review of Agricultural Entomology, 88(6), p 704 (5089).
Bemisia tabaci biotype B (also referred to as B. argentifolii – EPPO A2 quarantine pest) is reported in Cuba (Vazquez, 1999). Present: no details.
In Belgium, Cacoecimorpha pronubana (EPPO A2 quarantine pest) had been found in the past but was considered as not established. Recently, this pest has been observed more frequently in protected cultivation areas, especially on woody ornamentals. No damage is seen on outdoor crops. Present: only in protected cultivation. Review of Agricultural Entomology, 88(5), p 586 (4273).
In Italy, Cameraria ohridella (EPPO Alert List) has been found in Piemonte region. In particular, damage (severe leaf mining) was observed in Casale Monferrato in the Province of Alessandria (personal communication from A. Mosca and L. Balbo, 2000-09). Present: only in very limited area.
Liriomyza huidobrensis (EPPO A2 quarantine pest) occurs in the Metropolitan region, Chile. Present: no details. Review of Agricultural Entomology, 88(5), p 558 (4061).
Plasmopara halstedii (EU Annexes) was reported for the first time in Punjab in 1999, India. Present: no details. Review of Plant Pathology, 79(5), p 508 (3797).
In 1991-1993, a survey on tomato spotted wilt tospovirus (EPPO A2 quarantine pest) was carried out in glasshouse crops in the provinces of Poznań, Katowice and Kraków, western part of Poland. Tomato spotted wilt tospovirus was found in a few horticultural farms (4 out of 16). It was detected on 8 % of the tested plant samples, mainly on tomato, and sporadically on capsicum, chrysanthemum, Alstroemeria, and Asparagus sprengeri. In cases of early infection, yield reduction was observed on tomato and capsicum crops (Fiedorow, 1999). Present: only in some areas.
In India, surveys have showed that Radopholus similis (EPPO A2 quarantine pest) is widespread in banana plantations, in particular in the new plantations of the north eastern states: Assam, Bihar, Nagaland, West Bengal and eastern part of Uttar Pradesh. It was not found in Meghalaya. Present: only in some areas. Nematological Abstracts, 69(2), p 79 (561).
In Colombia, Thrips palmi (EPPO A1 quarantine pest) occurs in the region of Valle del Cauca on watermelons and cucumbers. Present: no details. Review of Agricultural Entomology, 88(5), p 572 (4164).
In Pakistan, surveys were done in 1993-1997 to evaluate the incidence of Tilletia indica (EPPO A1 quarantine pest) in wheat seed lots. A total of 730 wheat samples were tested. High infection rates were found in central Punjab (up to 37.5 % infected seed samples) and north-western parts. The fungus was not detected in samples from the southern part (Sindh). Compared to previous years, the incidence of the disease is diminishing (Bhutta et al., 1999). Present: only in some areas.
- Denied record
The record of Popillia japonica (EPPO A1 quarantine pest) in Korea Republic was already considered as doubtful in PQR. In Korea Republic, a recent and comprehensive examination of the genus Popillia failed to find any specimens of P. japonica collected in this country. Earlier records appear to be misidentifications of Popillia quadriguttata. Absent: pest record invalid. Review of Agricultural Entomology, 88(6), p 800 (5769).
- New host plants
The weeds, Mercurialis ambigua and Solanum luteum, are reported as natural host plants of tomato yellow leaf curl begomovirus (EPPO A2 quarantine pest) (Sánchez-Campos et al., 2000).
Bhutta, A.R.; Hussain, A.; Ahmad, I. (1999) ;Prevalence of Karnal bunt in wheat seed lots in Pakistan.
RACHIS Barley and Wheat Newsletter, 18(2), 38-42.
Fiedorow, Z. (1999) Incidence of tomato spotted wilt tospovirus (TSWV) in greenhouse crops in Western Poland and its effect on pepper and tomato yield.
Annals of Agricultural Sciences – Series E – Plant Protection, 28(1-2), 17-22.
Sánchez-Campos, S.; Navas-Castillo, J.; Monci, F.; Díaz, J.A.; Moriones, E. (2000) Mercurialis ambigua and Solanum luteum: two newly discovered natural hosts of tomato yellow leaf curl geminiviruses.
European Journal of Plant Pathology, 106(4), 391-394.
Vazquez, L.L. (1999) Whiteflies (Homoptera: Aleyrodidae) of Cuba and their host plants.
Bollettino del Laboratorio di Entomologia Agraria “Filippo Silvestri”, Portici. Vol 55, 139-149.
Personal communication from A. Mosca and L. Balbo. Gruppo Ricerche Ambientali, Mosquito and urban pest control service. Casale Monferrato. Italy (2000-09).
EPPO Secretariat, 2000-09.
Nematological Abstracts, 69(2). June 2000.
Review of Agricultural Entomology, 88(5 ; 6). May ; June 2000.
Review of Plant Pathology, 79(5). May 2000.