Aleurocanthus spiniferus found in Dutch greenhouse: report

This report concerns the official finding of Aleurocanthus spiniferus in the Netherlands on potted plants of Citrus limon and xCitrofortunella microcarpa in the facilities of a trading company of potted plants in the province of Noord-Holland. The infestation was detected during traceback investigations of a consignment of xCitrofortunella microcarpa, which was found infested on 9 February 2022 during an export inspection at a trading company at the flower auction. Traceback investigations revealed that the plants originated from a consignment received from Italy in January 2022. In total 74 plants at both trading companies have been chemically treated and destroyed.

During an inspection in the greenhouse of the trading company of potted plants, two other lots were found infested. One lot was a consignment of xCitrofortunella microcarpa received in February 2022 from Italy and was found infested on 16 February. In total 86 potted plants of this lot were still at this trading company. These plants have been chemically treated and destroyed.

Another infestation of A. spiniferus on two Citrus limon plants was officially confirmed on 25 February and could be traced back to three consignments of Citrus limon received in July & August 2021 of an Italian company. Trace forward investigations are ongoing and if there are deliveries to the other Member States these will be communicated.

Finally, all potential host plants at the trading company of potted plants were blocked, sealed and destroyed. Before sealing the compartment has been treated against adults of A. spiniferus. After monitoring by sticky traps for 3 days no adults were found, and the infestation is considered eradicated. The source of the infestation is not fully clear, although this company has received in 2021 and 2022 several deliveries from the two Italian companies mentioned in both TRACES notifications. The infestation with pupae and juveniles of A. spiniferus was detected in February 2022.

Read the complete report here.


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