Abstract
The red-necked longhorn beetle (RLB) Aromia bungii (Fald.) is an emerging pest of stone fruit trees, native to East Asia, accidentally introduced in Europe (Germany and Italy) and Japan. Threatening seriously the stone fruit crops in Europe, RLB was added to both the EPPO A1 and priority pest lists of quarantine species. Molecular analyses highlighted that all specimens recovered in southern Italy share the same haplotype, different from the German one, supporting that the invasive process in Europe started from at least two independent introductions. To fill the existing gap of biological knowledge about A. bungii, several laboratory tests were carried out on specimens collected in the outbreak area of Naples (Italy). Results suggest a high biotic potential of the RLB Italian population. Females showed a short pre-oviposition period while the period of oviposition lasted about three weeks, with a rate of 24.2 eggs/day. Each female laid an average of 587.5 eggs and spawned the largest amount of eggs during the first week after emergence. Fed males live up to 62 days at 20 °C while fed females about 63 days at 25 °C. These results are crucial to draw up a multi-facet IPM approach against A. bungii in the outbreak areas.
Highlights
The red-necked longhorn beetle (RLB) Aromia bungii (Fald.) is an emerging pest of stone fruit trees, native to East Asia, accidentally introduced in Europe (Germany and Italy) and Japan
c Oxidase subunit I (COI) sequencing revealed that all the A. bungii samples collected in Campania shared the same mitochondrial haplotype (Table 2)
The highest inter-group distance among A. bungii COI haplotypes resulted between Chinese sequences and Campanian ones (0.7%), while the lowest between German and Campanian haplotypes (0.4%)
Summary
The red-necked longhorn beetle (RLB) Aromia bungii (Fald.) is an emerging pest of stone fruit trees, native to East Asia, accidentally introduced in Europe (Germany and Italy) and Japan. Threatening seriously the stone fruit crops in Europe, RLB was added to both the EPPO A1 and priority pest lists of quarantine species. Fed males live up to 62 days at 20 °C while fed females about 63 days at 25 °C These results are crucial to draw up a multi-facet IPM approach against A. bungii in the outbreak areas. The red-necked longhorn beetle (RLB) Aromia bungii (Faldermann, 1835) (Coleoptera: Cerambycidae) is an invasive wood-borer pest of Prunus trees, including important commercial varieties. In 2013, a new outbreak was recorded in Northern Italy near Milan[10] leading to the inclusion of RLB in the A1 list of quarantine pests[11]. The pest is in a containment state in Northern Italy[14,15], while in Germany it is
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