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 situation of the pest concerned is indicated in bold, using the terms of ISPM no. 8.
- New geographical records
Aleurodicus dispersus (Hemiptera: Aleyrodidae, Alert List) occurs in Madeira, Portugal (Martin et al, 2000). Present, no details.
Echinothrips americanus (Thysanoptera, Thripidae) is reported for the first time from Sweden on glasshouse ornamentals (Nedstam, 2001). Present, found only under glasshouses.
- Detailed records
Rhizomania, caused by Beet necrotic yellow vein benyvirus (EPPO A2 quarantine pest) was found in October 2000 in sugar beet crops of the Columbia River Basin of Washington and Oregon, US (Gallian et al., 2002).
Claviceps africana (EPPO Alert List) is reported for the first time from Florida (US). It has been detected in Manatee and Alachua counties (ProMED-mail, 2001).
Frankliniella occidentalis (EPPO A2 quarantine pest) occurs in Madeira, Portugal. It was first found in 1992 on roses, and is now widespread in Madeira and the island of Porto Santo on ornamental and vegetable crops (particularly beans and cucumber). However, no severe outbreaks have been observed (Fernandes, 2001).
Tomato spotted wilt tospovirus (EPPO A2 quarantine pest) occurs in Madeira, Portugal. It was first found in 1999 on tomato crops in Câmara de Lobos. Surveys carried out in 2000, showed that the virus is only present in that area. It was mainly found on tomato, capsicum and lettuce crops (Fernandes, 2001).
In Iran, Xanthomonas axonopodis pv. citri (EPPO A1 quarantine pest) was first reported in 1990 on citrus trees in Kanouj region, Kerman province. At present, it is widely distributed across the southern region of Iran (Mohammadi et al., 2001).
In Florida (US), Xanthomonas axonopodis pv. citri (EPPO A1 quarantine pest) has been found in Desoto and Brevard counties, despite the current eradication programme (ProMED-mail, 2002).
- New host plants
Impatiens necrotic spot tospovirus (EPPO A2 quarantine pest) has been detected in Opuntia microdasys, in United Kingdom. Affected plants showed necrotic spots (Blockley & Mumford, 2001).
Blockley, A.L.; Mumford, R.A. (2001) Identification and isolation of Impatiens necrotic spot virus from prickly pear cactus (Opuntia microdasys). Plant Pathology, 50(6), p 805.
El-Muadhidi, M.A.; Makkouk, K.M.; Kumari, S.G.; Jerjess, M.; Murad, S.S.; Mustafa, R.R.; Tarik, F. (2001) Survey for legume and cereal viruses in Iraq. Phytopathologia Mediterranea, 40(3), 224-233.
Fernandes, A. (2001) El virus del bronceado del tomate (TSWV) en los cultivos hortícolas de la Isla de Madeira. Phytoma España, no. 126, 29-34.
Gallian, J. J.; Wintermantel, W. M.; Hamm, P.B. (2002). First report of rhizomania of sugar beet in the Columbia River Basin of Washington and Oregon. Plant Disease, 86(2), p 72.
Martin, J.H.; Mifsud, D.; Rapisarda, C. (2000) The whiteflies (Hemiptera: Aleyrodidae) of Europe and the Mediterranean Basin. Bulletin of Entomological Research, 90, 407-448.
Mohammadi, M.; Mirzâee, M.R.; Rahimian, H. (2001) Physiological and biochemical characteristics of Iranian strains of Xanthomonas axonopodis pv. citri, the causal agent of citrus bacterial canker disease. Journal of Phytopathology, 149(2), 65-75.
Nedstam, B. (2001) Thrips in interior landscapes. Växtskyddsnotiser, 65(1), 6-9.
ProMED-mail of 2001-11-24. Ergot, Sorghum – USA (Florida). http://www.promedmail.org
ProMED-mail of 2002-01-29. Citrus canker, Northern spread – USA (Florida). http://www.promedmail.org