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The factors influencing the entry and the spread of the black twig borer, Xylosandrus compactus (Eichhoff), in the Mediterranean environment have not yet been characterized. Following its first report in Sicily (southern Italy) in 2016, and due to the high level of damage it causes on one of its host plants (Ceratonia siliqua L.), the flight activity of the pest was studied there. Monitoring was performed from spring 2017 to summer 2018 by exposing red cross‐shaped sticky traps combined with ethanol‐baited bottle traps. The three monitored sites were selected at different altitudes, representing the southern Mediterranean environment where the carob tree is widely present. The results showed that the pest populations are influenced by climatic factors. In particular, the first adults were caught when the maximum daily temperatures were stably higher than 20°C over several continuous days. Xylosandrus compactus occurred widely in the monitored territory and was continuously caught from spring to autumn. Furthermore, the traps used proved to be effective for intercepting the spring flight of the overwintering females. Moreover, the ability of the beetle to spread from a new infested area was also studied. It seems that the pest can spread more than 8 km from the last infested site of the previous flying season. It was not present above altitudes of 400 m in the conditions of the present study. This study represents the first step to better understand the behaviour of X. compactus in a newly colonized environment.  相似文献   
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We provide an overview of both traditional and innovative control tools for management of three Xylosandrus ambrosia beetles (Coleoptera: Curculionidae: Scolytinae), invasive species with a history of damage in forests, nurseries, orchards and urban areas. Xylosandrus compactus, X. crassiusculus and X. germanus are native to Asia, and currently established in several countries around the globe. Adult females bore galleries into the plant xylem inoculating mutualistic ambrosia fungi that serve as food source for the developing progeny. Tunneling activity results in chewed wood extrusion from entry holes, sap outflow, foliage wilting followed by canopy dieback, and branch and trunk necrosis. Maintaining plant health by reducing physiological stress is the first recommendation for long-term control. Baited traps, ethanol-treated bolts, trap logs and trap trees of selected species can be used to monitor Xylosandrus species. Conventional pest control methods are mostly ineffective against Xylosandrus beetles because of the pests’ broad host range and rapid spread. Due to challenges with conventional control, more innovative control approaches are being tested, such as the optimization of the push–pull strategy based on specific attractant and repellent combinations, or the use of insecticide-treated netting. Biological control based on the release of entomopathogenic and mycoparasitic fungi, as well as the use of antagonistic bacteria, has yielded promising results. However, these technologies still require validation in real field conditions. Overall, we suggest that management efforts should primarily focus on reducing plant stress and potentially be combined with a multi-faceted approach for controlling Xylosandrus damage.

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