Xylotrechus chinensis (tiger longhorned beetle). Analysis of potential invasion, spread and risk management

Goal. To assess the risks of invasion and further spread of Xylotrechus chinensis (Coleoptera: Cerambycidae) in Ukraine. Methods. Literature and analytical approach. Modeling of the potential range of X. chinensis in Ukraine was performed using GIS technologies and software such as AgroAtlas, MapInfo Pro 15.0, and IDRISI Selva, which automatically generate predictive maps showing the potential for the presence and spread of adventive organisms. Results. The main criteria determining the possibility of pest acclimatization in new areas are the availability of a food base (i.e., host plants) and the similarity of climatic conditions to those in the pest’s existing range. The presence of large areas containing a wide variety of X. chinensis host plants, along with suitable climatic conditions in parts of Ukraine, creates favorable conditions for the pest’s invasion and further spread. The potential range of X. chinensis in Ukraine has been identified and mapped. Conclusions. There is a threat of introduction and further spread of X. chinensis in Ukraine due to the availability of host plants and the compatibility of climatic conditions with the species’ ecological requirements. The potential range of X. chinensis in Ukraine is limited to the Crimean Peninsula and the southern part of the Odesa region. Current phytosanitary measures cannot reliably prevent the risk of pest spread within the country. An effective risk mitigation measure could be the inclusion of X. chinensis (Tiger longhorned beetle) in List A1 (Quarantine pests not present in Ukraine) of the List of Regulated Harmful Organisms, with implementation of regulatory measures, including a ban on the import of Morus sp. planting material from countries where the pest is present. It is also necessary to develop an effective pest control system to prevent introduction, limit spread, and reduce its harmful impact.