Animals can adjust their behaviour according to previous experience gained during foraging. In parasitoids, experience plays a key role in host location, a hierarchical process in which air-borne and substrate-borne semiochemicals are used to find hosts. In nature, chemical traces deposited by herbivore hosts when walking on the plant are adsorbed by leaf surfaces and perceived as substrate-bor...

Candidate biological control agents of invasive insect pests are increasingly being found in new geographic regions as a result unintentional introductions. However, testing the degree genetic differentiation among adventive and native-range populations these is rarely done. We used reduced-representation sequencing genomic DNA to investigate relationships laboratory lines Trissolcus japonicus ...

Egg parasitoids foraging for suitable hosts scattered in the environment rely mainly on chemical cues. Elucidating ecology of natural enemies is important development effective and successful strategies conservation biological control. In this context, host cuticular hydrocarbons, which are exploited by several species egg as contact kairomones, could be used to retain them providing informatio...

Halyomorpha halys (Stål) (Hemiptera, Pentatomidae) was accidentally introduced to North America and Europe, becoming a key pest of many important crops. In its native range, it is attacked by egg parasitoids, including Trissolcus japonicus (Ashmead), considered be the main species, T. mitsukurii (Ashmead) (Hymenoptera, Scelionidae). detected in 2014 Europe 2017, while Australia early 20 th cent...

The brown marmorated stink bug Halyomorpha halys is an invasive agricultural pest with a worldwide distribution. Classical biological control has been identified as the most promising method to reduce populations of H. halys. Adventive two candidates for releases, Trissolcus japonicus and mitsukurii, have recently detected in Europe. To assess their distribution abundance, large-scale survey wa...