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Native and non-native egg parasitoids associated with brown marmorated stink bug (Halyomorpha halys [Stål, 1855]; Hemiptera: Pentatomidae) in Western Slovenia
ID Rot, Mojca (Author), ID Maistrello, Lara (Author), ID Costi, Elena (Author), ID Bernardinelli, Iris (Author), ID Malossini, Giorgio (Author), ID Benvenuto, Luca (Author), ID Trdan, Stanislav (Author)

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Abstract
Halyomorpha halys (Hemiptera: Pentatomidae), native to East Asia, has become a globally invasive pest, as a serious threat to agricultural production and a notorious nuisance pest in urban areas. Considerable efforts have been made so far to develop effective pest control measures to prevent crop damage. Biological control of this invasive stink bug by egg parasitoids has proven to be the most environmentally sustainable long-term solution. Knowledge of the native egg parasitoid fauna is of key importance when implementing a biological control program. Therefore, the main objective of our study was to detect egg parasitoid species associated with H. halys in the Goriška region (Western Slovenia) and to evaluate their impact on the pest population under field conditions. In the years 2019 and 2020, around 4600 H. halys eggs were collected in the wild and more than 3400 sentinel eggs were exposed to detect parasitoids in the field. Five egg-parasitoid species emerged from H. halys eggs: Anastatus bifasciatus (Hymenoptera: Eupelmidae), Telenomus sp., Trissolcus basalis, Trissolcus mitsukurii (Hymenoptera: Scelionidae) and Ooencyrtus telenomicida (Hymenoptera: Encyrtidae), all of them are new records for Slovenia. The native species, An. bifasciatus, dominated in urban and suburban areas, while non-native Tr. mitsukurii prevailed in agricultural areas. Overall parasitism rates of naturally laid eggs by the parasitoid species complex in 2019 and 2020 was 3.0 and 14.4%, respectively. Rapid recruitment of native parasitoids, early detection of an effective alien parasitoid species and increasing overall parasitism rates are very encouraging results, which need to be followed and verified in future research.

Language:English
Keywords:Halyomorpha halys, biological control, egg parasitoids, Anastatus, Trissolcus, Slovenia
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:BF - Biotechnical Faculty
Publication status:Published
Publication version:Version of Record
Year:2021
Number of pages:15 str.
Numbering:Vol. 12, iss. 6, art. 505
PID:20.500.12556/RUL-135510 This link opens in a new window
UDC:632
ISSN on article:2075-4450
DOI:10.3390/insects12060505 This link opens in a new window
COBISS.SI-ID:65283843 This link opens in a new window
Publication date in RUL:17.03.2022
Views:758
Downloads:85
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Record is a part of a journal

Title:Insects
Shortened title:Insects
Publisher:MDPI
ISSN:2075-4450
COBISS.SI-ID:519122457 This link opens in a new window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:01.06.2021

Secondary language

Language:Slovenian
Keywords:Halyomorpha halys, marmorirana smrdljivka, biotično varstvo rastlin, parazitoidi, naravni sovražniki, Anastatus bifasciatus, Trissolcus mitsukurii

Projects

Funder:ARRS - Slovenian Research Agency
Project number:V4-2002
Name:Obvladovanje marmorirane smrdljivke v Sloveniji

Funder:Other - Other funder or multiple funders
Funding programme:Slovenia, Ministry of Agriculture, Forestry and Food (MKGP)

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