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

By

Georgiev, Georgi
Boyadzhiev, Peter
Georgieva, Margarita
Mirchev, Plamen
Kechev, Mihail
Belilov, Sevdalin
Katinova, Boriana

Type

Article

Date of Publication

2024-8-2

Original Publication

Silva Balcanica

Volume

25

Series / Issue

Issue: 2

Pages

31--36

Subjects

Bulgaria , Eulophidae , Oak lace bug , parasitoids , Tamarixia pubescens

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Forest Research Institute - Bulgarian Academy of Sciences (FRI-BAS) [2001]-

Identifiers

DOI: https://doi.org/10.3897/silvabalcanica.25.e132142

 

Abstract

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.