Occurrence of apple chlorotic leaf spot virus in plum orchards | Ābeļu hlorotiskās lapu plankumainības vīrusa izplatība plūmju stādījumos
2011
Pupola, N., Latvian State Inst. of Fruit-Growing, Dobele (Latvia) | Kale, A., Latvian State Inst. of Fruit-Growing, Dobele (Latvia) | Gospodaryk, A., Latvian State Inst. of Fruit-Growing, Dobele (Latvia)
Apple chlorotic leaf spot virus (ACLSV) is one of the most widespread and economically important fruit tree viruses. It naturally affects many Prunus species, apples (Malus × domestica Borkh.), pears (Pyrus communis L.) and other Rosacea species. In Latvia, many apple and pear orchards are highly infected with ACLSV, but occurrence of this virus in plum orchards is still unknown. To evaluate the occurrence of ACLSV in plum orchards a large scale survey was carried out in 2008. Totally 491 samples from 21 plum orchards were collected in five geographic regions of Latvia. Collected samples were tested with two methods: enzyme-linked immunosorbent assay (DAS ELISA) and reverse transcription polymerase chain reaction (RT-PCR). Obtained results showed that in plum orchards ACLSV occurrence is 3.3% (by ELISA) and 10.8% (by RT-PCR). ACLSV is more widespread in Zemgales region than in other regions. Prunus domestica cultivar ‘Experimentalfältets Sviskon’ was more infected with ACLSV than other plum cultivars. This is the first report of the occurrence of ACLSV in plum orchards in Latvia.
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