Update on the situation of Saperda candida in Germany
In Germany, Saperda candida (Coleoptera: Cerambycidae – EPPO A1 list) was first detected on the Island of Fehmarn (Schleswig-Holstein) in 2008 (EPPO RS 2008/139). Since then, new outbreaks have been identified, seven infested areas defined, and a monitoring programme and eradication measures have been applied (EPPO RS 2021/036; EPPO RS 2023/111).
In April 2023, two further infested areas were established following the finding of exit holes in a Crataegus hedge, and one larva in Crataegus plant, and the demarcated area expanded accordingly. Eradication measures were applied: all host plants of S. candida within a 200 m radius of the infestation site were felled, chipped and burned. Roots of host plants were dug out and incinerated.
During surveys conducted in 2024, exit holes and 8 larvae identified as S. candida were found in a Crataegus hedge in August and September. This resulted in the establishment of 2 new overlapping infested areas (located between two existing infested areas) which include trees next to a road, private gardens and a campsite. While felling the infested hedge and trees on the roadside 46 larvae were found in December 2024. Eradication measures in private gardens and the campsite begun in February 2025.
Surveys across the demarcated area continue. Since 2023, this includes the use of sniffer dogs and visual inspection weekly throughout the year, according to the biology of S. candida.
The pest status of Saperda candida in Germany is officially declared as: Present, only in some parts of the member state concerned (one location), under eradication.
Sources
NPPO of Germany (2025-02).