New parasitoids of Corythucha arcuata (Say) (Hemiptera: Tingidae) in Bulgaria

During the period 2019-2020, parasitoids of invasive oak lace bug ( Corythucha arcuata ) were studied in Bulgaria. Biological material (larvae of C. arcuata ) was collected from European oak ( Quercus robur ) or Austrian oak ( Quercus cerris ) in five localities of the country. Five eulophid specime...

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Bibliographic Details
Published in:Silva Balcanica (Sofia) 2024-08, Vol.25 (2), p.31-36
Main Authors: Georgiev, Georgi, Boyadzhiev, Peter, Georgieva, Margarita, Mirchev, Plamen, Kechev, Mihail, Belilov, Sevdalin, Katinova, Boriana
Format: Article
Language:English
Subjects:
Biological materials
Corythucha arcuata
Elasmus
Eulophidae
Host-parasite interactions
Larvae
Minotetrastichus
Oak
Oak lace bug
Parasitoids
Pnigalio
Quercus cerris
Quercus robur
Sympiesis
Tamarixia p
Tamarixia pubescens
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Summary:During the period 2019-2020, parasitoids of invasive oak lace bug ( Corythucha arcuata ) were studied in Bulgaria. Biological material (larvae of C. arcuata ) was collected from European oak ( Quercus robur ) or Austrian oak ( Quercus cerris ) in five localities of the country. Five eulophid specimens (Hymenoptera: Eulophidae) were reared from the host larvae: Tamarixia pubescens , Elasmus sp., Minotetrastichus sp., Pnigalio sp. and Sympiesis sp. The impact of the parasitoids on the host number was very low (0.1-0.3%). The present records in Bulgaria are the first documented case of adaptation of native parasitoids to the host in the newly occupied areas in Europe and Asia.
ISSN:1311-8706
2815-2549
DOI:10.3897/silvabalcanica.25.e132142