Situation of several regulated pests in Lithuania in 2016
The NPPO of Lithuania has recently informed the EPPO Secretariat of the results of national surveys conducted in 2016 on several regulated pests. The EPPO Secretariat has extracted below data provided on pests which were declared to be present in Lithuania (pest status officially declared by the NPPO is indicated in bold). For pests which were declared as absent, pest statuses have been transferred directly into EPPO Global Database.
- Bacteria
Clavibacter michiganensis subsp. sepedonicus (EPPO A2 List): in 2016, 15 outbreaks of potato ring rot were detected. All were found on ware potatoes grown in small scale farms of less than 2 ha (with the exception of 2 growers who had potato fields of more than 50 ha). All infected potatoes had been grown from farm-saved seed potatoes. All infected potatoes have been destroyed and phytosanitary measures have been applied in accordance with EU Directive 2006/56/EC. These measures will be implemented during the next 4 years.
Present: only in some areas where host crop(s) are grown.
Erwinia amylovora (EPPO A2 List): in 2016, no new outbreak was detected in Lithuania. The last outbreak was detected in 2015 on a river bank in the Kaunas region. Eradication measures were taken in 2015, all infected trees and potential hosts located within a radius of 10 or 20 m around them were destroyed (uprooted and burned). Restrictions on the movement of host plants were applied in demarcated areas (focus and buffer zones) in 2015 and 2016.
Present: under eradication.
- Nematode
Globodera rostochiensis (EPPO A2 List): in 2016, 15 outbreaks were detected. The nematode was detected in soil samples collected from several ware potato farms. The size of infested fields varied from 0.1 to 1 ha. The majority of outbreaks were found in the region of Vilnius. Official phytosanitary measures have been applied in accordance with EU Directive 2007/33/EC. In the infested areas, the cultivation of potatoes and other host plants is prohibited for the next 6 years.
Present: only in some areas where host crop(s) are grown.
- Fungus
Dothistroma septosporum (teleomorph = Mycosphaerella pini – EU Annexes): in 2016,
1 outbreak was detected in the region of Klaipeda. Phytosanitary measures were taken to prevent the spread of the disease and all infected plants were destroyed by incineration. Phytosanitary measures will be applied for the next 2 years.
1 outbreak was detected in the region of Klaipeda. Phytosanitary measures were taken to prevent the spread of the disease and all infected plants were destroyed by incineration. Phytosanitary measures will be applied for the next 2 years.
Present: at low prevalence.
- Virus
Plum pox virus (Potyvirus, PPV - EPPO A2 List): in 2016, 1 outbreak of PPV was detected on plum trees (Prunus domestica) in the region of Kaunas. All infected plum trees have been destroyed by incineration. Phytosanitary measures will be implemented in the infected area for the next 3 years.
Present: under eradication.
Sources
NPPO of Lithuania (2017-03).