Find in Library

We report the first detection of <i>Trissolcus mitsukurii</i> in France. More than 1860 sentinel egg masses of <i>Halyomorpha halys</i> (BMSB) were exposed in the field during the 2018–2020 period, and 12 specimens of <i>T. mitsukurii</i> emerged from one egg mass. Their taxonomic identification was confirmed both by morphological and molecular analysis. <i>Trissolcus mitsukurii</i>, similar to <i>T. japonicus</i>, is an egg parasitoid of BMSB in its area of origin in Asia, and both species are considered to be candidates for a classical biological control strategy against BMSB. <i>Trissolcus mitsukurii</i> was previously recorded in Italy where it is well established and widespread, and this may be the source of the French population. Possible permanent establishment and dispersion of <i>T. mitsukurii</i> in France should be monitored with emphasis on its potential effect on BMSB populations.