| Title: | Attraction of Egg Parasitoids Trissolcus mitsukurii and Trissolcus japonicus to the chemical cues of Halyomorpha halys and Nezara viridula |
| Author(s): | Scala M; Fouani JM; Zapponi L; Mazzoni V; Wells KE; Biondi A; Baser N; Verrastro V; Anfora G; |
| Address: | "Center Agriculture Food Environment, University of Trento, Via E. Mach 1, 38098 San Michele all'Adige, Italy. Research and Innovation Center, Fondazione Edmund Mach, Via E. Mach 1, 38098 San Michele all'Adige, Italy. Department of Agriculture, Food and Environment, University of Catania, Via Santa Sofia 100, 95123 Catania, Italy. Department of Mediterranean Organic Agriculture, Mediterranean Agronomic Institute of Bari (CIHEAM Bari), Via Ceglie 9, 70010 Valenzano, Italy" |
| ISSN/ISBN: | 2075-4450 (Print) 2075-4450 (Electronic) 2075-4450 (Linking) |
| Abstract: | "Trissolcus mitsukurii and Trissolcus japonicus are two Asian egg parasitoids associated with different pentatomids such as Halyomorpha halys. Adventive populations of T. mitsukurii were found in Northern Italy, suggesting its employment as a biological control agent (BCA) against H. halys. Nevertheless, to reduce the latter's population, T. japonicus was released in Italy. Releasing an exotic parasitoid requires investigating the interaction between the BCA and the environment to avoid negative impacts on the entomofauna of the new habitat. Trissolcus mitsukurii is mainly associated with Nezara viridula in its native area. Therefore, we investigated and compared the ability of female T. mitsukurii and T. japonicus to distinguish between naturally released cues of H. halys and N. viridula. A single parasitoid was exposed to contact kairomones of both pests to evaluate its modifications in orthokinetic and locomotory behaviour. The behaviour of female T. mitsukurii was also tested on synthetic compounds simulating the cues of the two pentatomids. When naturally released cues were used, T. japonicus preferred the traces of H. halys, while T. mitsukurii preferred N. viridula's cues. Moreover, the attraction of T. mitsukurii to N. viridula's cues was confirmed with synthetic cues. Additional studies are needed to judge if this parasitoid can be used as a BCA" |
| Keywords: | Halyomorpha halys Trissolcus mitsukurii behavioural trials biological control risk assessment; |
| Notes: | "PubMed-not-MEDLINEScala, Marica Fouani, Jalal Melhem Zapponi, Livia Mazzoni, Valerio Wells, Karen Elizabeth Biondi, Antonio Baser, Nuray Verrastro, Vincenzo Anfora, Gianfranco eng Switzerland 2022/05/28 Insects. 2022 May 6; 13(5):439. doi: 10.3390/insects13050439" |
