Insect Diversity in <i>Pinus sylvestris</i> Forest Stands Damaged by <i>Lymantria monacha</i>

Outbreaks of <i>Lymantria monacha</i> are of great concern, as their occurrence is predicted to become more intense and frequent due to a warming climate. A frequent treatment to control mass outbreaks of the pest is with the bioinsecticide Foray 76B. However, knowledge of how this treat...

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Main Authors: Vytautas Čėsna, Artūras Gedminas, Jūratė Lynikienė, Diana Marčiulynienė
Format: Article
Language:English
Published: MDPI AG 2024-03-01
Series:Insects
Subjects:
Online Access:https://www.mdpi.com/2075-4450/15/3/200
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author Vytautas Čėsna
Artūras Gedminas
Jūratė Lynikienė
Diana Marčiulynienė
author_facet Vytautas Čėsna
Artūras Gedminas
Jūratė Lynikienė
Diana Marčiulynienė
author_sort Vytautas Čėsna
collection DOAJ
description Outbreaks of <i>Lymantria monacha</i> are of great concern, as their occurrence is predicted to become more intense and frequent due to a warming climate. A frequent treatment to control mass outbreaks of the pest is with the bioinsecticide Foray 76B. However, knowledge of how this treatment affects non-target insect species is limited. We surveyed the assemblages of non-target epigeal and arboreal insects in <i>Pinus sylvestris</i> forests in the year following bioinsecticide application. A collection of insects using sweep nets and pitfall traps was carried out in <i>L. monacha</i>-infested pine stands, (i) treated with Foray 76B and (ii) untreated, in three regions of Lithuania from May to October 2021. The results revealed that, in Neringa forests, species richness of the epigeal insects was lower in treated than in untreated sampling plots, with 36 and 41 different insect species, respectively. The relative abundance of epigeal Coleoptera in treated plots was 3.6%, while in untreated it was 53.2%. There was a significant decrease in the relative abundance of <i>Carabus arcencis</i> in Kapčiamiestis (by 7.4%) and Marcinkonys (by 16.7%). Treated plots were distinguished by lower relative abundance of arboreal Hymenoptera at all three study locations.
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spelling doaj.art-bbfadf07f6be474cbe86958c028a81972024-03-27T13:47:19ZengMDPI AGInsects2075-44502024-03-0115320010.3390/insects15030200Insect Diversity in <i>Pinus sylvestris</i> Forest Stands Damaged by <i>Lymantria monacha</i>Vytautas Čėsna0Artūras Gedminas1Jūratė Lynikienė2Diana Marčiulynienė3Institute of Forestry, Lithuanian Research Centre for Agriculture and Forestry, Liepų 1, LT-53101 Girionys, LithuaniaInstitute of Forestry, Lithuanian Research Centre for Agriculture and Forestry, Liepų 1, LT-53101 Girionys, LithuaniaInstitute of Forestry, Lithuanian Research Centre for Agriculture and Forestry, Liepų 1, LT-53101 Girionys, LithuaniaInstitute of Forestry, Lithuanian Research Centre for Agriculture and Forestry, Liepų 1, LT-53101 Girionys, LithuaniaOutbreaks of <i>Lymantria monacha</i> are of great concern, as their occurrence is predicted to become more intense and frequent due to a warming climate. A frequent treatment to control mass outbreaks of the pest is with the bioinsecticide Foray 76B. However, knowledge of how this treatment affects non-target insect species is limited. We surveyed the assemblages of non-target epigeal and arboreal insects in <i>Pinus sylvestris</i> forests in the year following bioinsecticide application. A collection of insects using sweep nets and pitfall traps was carried out in <i>L. monacha</i>-infested pine stands, (i) treated with Foray 76B and (ii) untreated, in three regions of Lithuania from May to October 2021. The results revealed that, in Neringa forests, species richness of the epigeal insects was lower in treated than in untreated sampling plots, with 36 and 41 different insect species, respectively. The relative abundance of epigeal Coleoptera in treated plots was 3.6%, while in untreated it was 53.2%. There was a significant decrease in the relative abundance of <i>Carabus arcencis</i> in Kapčiamiestis (by 7.4%) and Marcinkonys (by 16.7%). Treated plots were distinguished by lower relative abundance of arboreal Hymenoptera at all three study locations.https://www.mdpi.com/2075-4450/15/3/200Scots pinenun mothpest outbreaksbiological control<i>Bacillus thurningiensis</i>
spellingShingle Vytautas Čėsna
Artūras Gedminas
Jūratė Lynikienė
Diana Marčiulynienė
Insect Diversity in <i>Pinus sylvestris</i> Forest Stands Damaged by <i>Lymantria monacha</i>
Insects
Scots pine
nun moth
pest outbreaks
biological control
<i>Bacillus thurningiensis</i>
title Insect Diversity in <i>Pinus sylvestris</i> Forest Stands Damaged by <i>Lymantria monacha</i>
title_full Insect Diversity in <i>Pinus sylvestris</i> Forest Stands Damaged by <i>Lymantria monacha</i>
title_fullStr Insect Diversity in <i>Pinus sylvestris</i> Forest Stands Damaged by <i>Lymantria monacha</i>
title_full_unstemmed Insect Diversity in <i>Pinus sylvestris</i> Forest Stands Damaged by <i>Lymantria monacha</i>
title_short Insect Diversity in <i>Pinus sylvestris</i> Forest Stands Damaged by <i>Lymantria monacha</i>
title_sort insect diversity in i pinus sylvestris i forest stands damaged by i lymantria monacha i
topic Scots pine
nun moth
pest outbreaks
biological control
<i>Bacillus thurningiensis</i>
url https://www.mdpi.com/2075-4450/15/3/200
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