Situation of several quarantine pests in Lithuania in 2003
National surveys were done in Lithuania for the presence of several quarantine pests. The results for 2003 are presented below. Results of earlier surveys (2000, 2002) had been presented in EPPO RS 2000/136 and 2003/050, respectively.
Clavibacter michiganensis subsp. michiganensis (EPPO A2 list)
The bacterium was discovered in one glasshouse of tomatoes. Infected plants have been destroyed and those remaining in the glasshouse were placed under observation. Present, found in one glasshouse of tomatoes, under eradication.
Clavibacter michiganensis subsp. sepedonicus (EPPO A2 list)
The bacterium was detected in seed potatoes in one farm (20 tons). It was also detected on ware potatoes grown in 3 farms which also produced seed potatoes (131 tons) and in 21 farms which only grew ware potatoes (726.5 tons). All infected potatoes were used for food and fodder. Present, found in a few areas (25 outbreaks), under official control.
Ditylenchus destructor (EU Annexes)
3 outbreaks were identified in seed potato-growing farms. Present, found in a few areas (3 outbreaks), under official control.
Frankliniella occidentalis (EPPO A2 list)
The pest was found under glasshouses producing flowers (0.6019 ha). Infested plants were destroyed and glasshouses were disinfected. Present, found in a few areas (0.6 ha), under glasshouse conditions, under eradication.
Globodera rostochiensis (EPPO A2 list)
Soil samples were analysed and as a result, 69 outbreaks were detected over 408.545 ha. On 307.851 ha it had been planned to grow potatoes, and on the rest (100.694 ha) the land was dedicated to nurseries, ornamental seedlings and propagation material for flower production. On the infested land, it is now prohibited to grow potatoes and any propagation material. Present, found in some areas (69 outbreaks), under official control.
Liriomyza bryoniae (EU Annexes)
The pest was found in glasshouses producing vegetables and flowers (3.5 ha), as well as in the surroundings of these glasshouses and of companies importing flowers. In total, 40 outbreaks have been found. All infested plants have been destroyed and chemicals were applied to disinfect the glasshouses and their surroundings. Present, found in a few areas (40 outbreaks, mainly under glass), under eradication.
Phoma exigua var. foveata (formerly on EPPO A2 list)
25 tons of seed potatoes were found contaminated in one storehouse. Infected potatoes were used for food and fodder and the storehouse was disinfected. Present, found in one storehouse, under official control.
Plum pox potyvirus (EPPO A2 list)
319.462 ha of orchards were examined for the presence of Plum pox potyvirus. Outbreaks have been identified in 2 breeding research stations and one private garden on plum (Prunus domestica). As a result, the 3 plum trees have been destroyed. Present, found in a few areas (3 outbreaks) on Prunus domestica, under eradication.
Puccinia horiana (EPPO A2 list)
50 chrysanthemum plants infected by P. horiana were found in one glasshouse. All contaminated plants were destroyed. Present, found in one glasshouse, under eradication.
Sources
NPPO of Lithuania, 2004-05-11.