Update of the situation of Citrus bark cracking viroid in Slovenia
In Slovenia Citrus bark cracking viroid (CBCVd - EPPO A2 List) was first recorded causing a damaging disease on hop (Humulus lupulus) in 2015 (RS 2015/111). Since then, official phytosanitary measures are applied but the disease is still progressing and threatens hop production in Slovenia. In 2018, CBCVd was confirmed on 23 farms (17 in 2016) in 70 hop gardens (42 in 2016) with a total area of 145 ha (92.3 ha in 2016).
Therefore, stricter phytosanitary measures were adopted in March 2019 (Uradni list RS, št. 16/19). As a consequence more plants around an infected plant will be destroyed (typically 5 rows in a hop garden), it will be prohibited to plant new hop plants in an infected place of production, and stricter hygienic measures will be required.
The pest status of Citrus bark cracking viroid in Slovenia is officially declared as: Present, under eradication.
NPPO of Slovenia (2019-06).
Ministry of Agriculture, Forestry and Food of Slovenia.