Effects of root inoculation of entomopathogenic fungi on olfactory-mediated behavior and life-history traits of the parasitoid Aphidius ervi (Haliday) (Hymenoptera : Braconidae)
© 2023 Society of Chemical Industry..
BACKGROUND: Although most biological control programs use multiple biological agents to manage pest species, to date only a few programs have combined the use of agents from different guilds. Using sweet pepper (Capsicum annuum L.), the entomopathogenic fungus Akanthomyces muscarius ARSEF 5128, the tobacco peach aphid Myzus persicae var. nicotianae and the aphid parasitoid Aphidius ervi as the experimental model, we explored whether root inoculation with an entomopathogenic fungus is compatible with parasitoid wasps for enhanced biocontrol of aphids.
RESULTS: In dual-choice behavior experiments, A. ervi was significantly attracted to the odor of M. persicae-infested C. annuum plants that had been inoculated with A. muscarius, compared to noninoculated infested plants. There was no significant difference in attraction to the odor of uninfested plants. Myzus persicae-infested plants inoculated with A. muscarius emitted significantly higher amounts of indole, (E)-nerolidol, (3E,7E)-4,8,12-trimethyltrideca-1,3,7,11-tetraene and one unidentified terpene compared to noninoculated infested plants. Coupled gas chromatography-electroantennography, using the antennae of A. ervi, confirmed the physiological activity of these elevated compounds. Inoculation of plants with A. muscarius did not affect parasitism rate nor parasitoid longevity, but significantly increased the speed of mummy formation in parasitized aphids on fungus-inoculated plants.
CONCLUSION: Our data suggest that root inoculation of C. annuum with A. muscarius ARSEF 5128 alters the olfactory-mediated behavior of parasitoids, but has little effect on parasitism efficiency or life-history parameters. However, increased attraction of parasitoids towards M. persicae-infested plants when inoculated by entomopathogenic fungi can accelerate host localization and hence improve biocontrol efficacy. © 2023 Society of Chemical Industry.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:80 |
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| Enthalten in: |
Pest management science - 80(2024), 2 vom: 08. Jan., Seite 307-316 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Wilberts, Liesbet [VerfasserIn] |
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| Links: |
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| Themen: |
Akanthomyces muscarius |
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| Anmerkungen: |
Date Completed 12.01.2024 Date Revised 12.01.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1002/ps.7762 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM361802285 |
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| 100 | 1 | |a Wilberts, Liesbet |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Effects of root inoculation of entomopathogenic fungi on olfactory-mediated behavior and life-history traits of the parasitoid Aphidius ervi (Haliday) (Hymenoptera |b Braconidae) |
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| 520 | |a © 2023 Society of Chemical Industry. | ||
| 520 | |a BACKGROUND: Although most biological control programs use multiple biological agents to manage pest species, to date only a few programs have combined the use of agents from different guilds. Using sweet pepper (Capsicum annuum L.), the entomopathogenic fungus Akanthomyces muscarius ARSEF 5128, the tobacco peach aphid Myzus persicae var. nicotianae and the aphid parasitoid Aphidius ervi as the experimental model, we explored whether root inoculation with an entomopathogenic fungus is compatible with parasitoid wasps for enhanced biocontrol of aphids | ||
| 520 | |a RESULTS: In dual-choice behavior experiments, A. ervi was significantly attracted to the odor of M. persicae-infested C. annuum plants that had been inoculated with A. muscarius, compared to noninoculated infested plants. There was no significant difference in attraction to the odor of uninfested plants. Myzus persicae-infested plants inoculated with A. muscarius emitted significantly higher amounts of indole, (E)-nerolidol, (3E,7E)-4,8,12-trimethyltrideca-1,3,7,11-tetraene and one unidentified terpene compared to noninoculated infested plants. Coupled gas chromatography-electroantennography, using the antennae of A. ervi, confirmed the physiological activity of these elevated compounds. Inoculation of plants with A. muscarius did not affect parasitism rate nor parasitoid longevity, but significantly increased the speed of mummy formation in parasitized aphids on fungus-inoculated plants | ||
| 520 | |a CONCLUSION: Our data suggest that root inoculation of C. annuum with A. muscarius ARSEF 5128 alters the olfactory-mediated behavior of parasitoids, but has little effect on parasitism efficiency or life-history parameters. However, increased attraction of parasitoids towards M. persicae-infested plants when inoculated by entomopathogenic fungi can accelerate host localization and hence improve biocontrol efficacy. © 2023 Society of Chemical Industry | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Akanthomyces muscarius | |
| 650 | 4 | |a Capsicum annuum | |
| 650 | 4 | |a Lecanicillium muscarium | |
| 650 | 4 | |a Myzus persicae var. nicotianae | |
| 650 | 4 | |a biological control | |
| 650 | 4 | |a endophyte | |
| 700 | 1 | |a Vuts, József |e verfasserin |4 aut | |
| 700 | 1 | |a Caulfield, John C |e verfasserin |4 aut | |
| 700 | 1 | |a Thomas, Gareth |e verfasserin |4 aut | |
| 700 | 1 | |a Withall, David M |e verfasserin |4 aut | |
| 700 | 1 | |a Wäckers, Felix |e verfasserin |4 aut | |
| 700 | 1 | |a Birkett, Michael A |e verfasserin |4 aut | |
| 700 | 1 | |a Jacquemyn, Hans |e verfasserin |4 aut | |
| 700 | 1 | |a Lievens, Bart |e verfasserin |4 aut | |
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