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Avramov Z.,Central Laboratory for Plant Quarantine | Contaldo N.,University of Bologna | Bertaccini A.,University of Bologna | Sakalieva D.,Agricultural University of Plovdiv
Bulletin of Insectology | Year: 2011

Since 2005 the National Plant Protection Service in Bulgaria has included a monitoring program for detection, among other quarantine pests and pathogens, of quarantine phytoplasmas. During surveys conducted under this program. symptoms similat to those reported for phytoplasma diseases were observed in cherry trees. Sampling and molecular analyses allow to verify presence of stolbur phytoplasmas in symptomatic plants of cherry and bindweed in the same orchards suggesting the association of the disease in cherry with phytoplasmas.

Dimitrova L.,Central Laboratory for Plant Quarantine | Laginova M.,Central Laboratory for Plant Quarantine | Becheva A.,Central Laboratory for Plant Quarantine | van Leeuwen G.C.M.,National Reference Laboratory
EPPO Bulletin | Year: 2011

Potato wart disease caused by Synchytrium endobioticum was detected for the first time in Bulgaria in 2004. Laboratory tests, pot tests and field tests were carried out to determine which pathotype is present, specifically in Prodanovtsi near the town of Samokov. In addition, potato cultivars were tested for levels of resistance, in order to be used in buffer zones surrounding infested fields. Based on the results obtained in this study, it was found that most probably pathotype 8(F1) is present in Bulgaria. Most of the commercial potato cultivars tested were found to be susceptible to this pathotype. The local cultivars Koral and Bor were resistant, but these are not very important cultivars commercially. The potato cultivars Panda, Désirée and Amorosa were recommended for cultivation in the fields adjacent to infested plots. © 2011 The Authors. Journal compilation © 2011 OEPP/EPPO.

Avramov Z.,Central Laboratory for Plant Quarantine | Ivanova I.,Central Laboratory for Plant Quarantine | Laginova M.,Central Laboratory for Plant Quarantine
Bulletin of Insectology | Year: 2011

In the beginning of 2003, the Bulgarian Food Safety Agency started the monitoring program for quarantine pests on grapevine. The object of surveys was to verify the possible presence of 'flavescence dorée' phytoplasmas. At the same period entomological surveys were carried out with yellow sticky traps in the vineyards surveyed. dentification of Scaphoideus titanus Ball. was done in the summer of 2006 in Varna and Veliko Turnovo regions. For the control of natural spreading of phytoplasmas in Bulgarian vineyards individual testing by PCR of the collected planthoppers and leafhoppers in order to define phytoplasma presence and increase knowledge on the grapevine phytoplasma vectors in Bulgaria was carried out.

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