Attraction of Egg Parasitoids Trissolcus mitsukurii and Trissolcus japonicus to the chemical cues of Halyomorpha halys and Nezara viridula

and are two Asian egg parasitoids associated with different pentatomids such as . Adventive populations of were found in Northern Italy, suggesting its employment as a biological control agent (BCA) against . Nevertheless, to reduce the latter's population, was released in Italy. Releasing an e...

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Bibliographic Details
Published in:Insects (Basel, Switzerland) Switzerland), 2022-05, Vol.13 (5), p.439
Main Authors: Scala, Marica, Fouani, Jalal Melhem, Zapponi, Livia, Mazzoni, Valerio, Wells, Karen Elizabeth, Biondi, Antonio, Baser, Nuray, Verrastro, Vincenzo, Anfora, Gianfranco
Format: Article
Language:English
Subjects:
Attraction
behavioural trials
Biological control
Chemical stimuli
Eggs
Entomofauna
Evaluation
Females
Halyomorpha halys
Homology
Introduced species
Kairomones
Natural enemies
Nezara viridula
Parasitoids
Pests
Populations
Preferences
Risk assessment
Trissolcus japonicus
Trissolcus mitsukurii
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Summary:and are two Asian egg parasitoids associated with different pentatomids such as . Adventive populations of were found in Northern Italy, suggesting its employment as a biological control agent (BCA) against . Nevertheless, to reduce the latter's population, 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. is mainly associated with in its native area. Therefore, we investigated and compared the ability of female and to distinguish between naturally released cues of and A single parasitoid was exposed to contact kairomones of both pests to evaluate its modifications in orthokinetic and locomotory behaviour. The behaviour of female was also tested on synthetic compounds simulating the cues of the two pentatomids. When naturally released cues were used, preferred the traces of while preferred 's cues. Moreover, the attraction to 's cues was confirmed with synthetic cues. Additional studies are needed to judge if this parasitoid can be used as a BCA.
ISSN:2075-4450
2075-4450
DOI:10.3390/insects13050439