Situation of quarantine pests in Latvia in 2001
The NPPO of Latvia recently informed the EPPO Secretariat of the situation of several quarantine pests in 2001. The situation of the pest concerned is indicated in bold, using the terms of ISPM no. 8.
Beet necrotic yellow vein furovirus (EPPO A2 quarantine pest)
During a survey on this virus, causing rhizomania, 46 samples were collected from farms producing beet. The virus was not found. Absent, confirmed by survey.
Bursaphelenchus xylophilus (EPPO A1 quarantine pest)
During a survey on B. xylophilus, 68 samples of Pinus were collected from forest plants and sawn timber. B. xylophilus was not found. Absent, confirmed by survey.
Clavibacter michiganensis subsp. sepedonicus (EPPO A2 quarantine pest)
57 seed potato production farms were inspected and 190 samples were taken. Infection was found in 5 farms. Strict control measures are being taken, in accordance with EU Directive 93/85/EEC. Present, found at 5 production sites, under official control.
Erwinia amylovora (EPPO A2 quarantine pest)
65 sites of fireblight host plants (Chaenomeles, Cotoneaster, Crataegus, Malus, Pyrus, Sorbus) covering a total area of 385.91 ha were inspected and 67 samples were tested for the presence of Erwinia amylovora. E. amylovora was not found. Absent, confirmed by survey.
Glasshouse pests
During systematic surveys on glasshouse pests, 132 samples were collected from 147 production sites.
- Liriomyza bryoniae (EU Annexes) was observed on 26 samples. Its presence was confirmed in 20 glasshouses on the following crops: tomato, cucumber and capsicum. Present, only in glasshouses.
- Bemisia tabaci (EPPO A2 quarantine pest) was not found. Absent, confirmed by survey.
- Thrips palmi (EPPO A1 quarantine pest) was not found. Absent, confirmed by survey.
Globodera rostochiensis and Globodera pallida (both EPPO A2 quarantine pests)
4474 soil samples were collected from 59 seed potato production farms and 56 nurseries and tested. The presence of Globodera rostochiensis was confirmed in 97 samples. 16 seed potato production farms and 6 nurseries were infested. Eradication measures are being taken in the infested area. Globodera pallida was not found. G. rostochiensis: Present, found in several production sites, under eradication. G. pallida: Absent, confirmed by survey.
Puccinia horiana (EPPO A2 quarantine pest)
During systematic surveys, 56 samples of Dendranthema were collected from 67 sites for the production of chrysanthemum cut flowers and 19 sites for the production of planting material. Puccinia horiana was found in 11 Dendranthema (cut flower) production sites. Eradication measures were taken. Present, found in 11 production sites of chrysanthemum cut flowers, under eradication.
Sources
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NPPO of Latvia, 2002-05.
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