Palatability of Norway spruce needles infected with Lophodermium piceae to larvae of two sawfly species
Unequivocal evidence on the antagonistic effects of endophytic fungi associated with woody plants against insect herbivores has been documented in only a few cases so far. Experimental evidence of the significance of needle endophytes to coniferous trees has remained scant because it is difficult to...
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| Format: | Article |
| Language: | English |
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Finnish Society of Forest Science
2023-10-01
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| Series: | Silva Fennica |
| Subjects: | |
| Online Access: | https://www.silvafennica.fi/article/23026 |
| _version_ | 1797299862302097408 |
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| author | Michael M. Müller Leena Hamberg Martti Varama |
| author_facet | Michael M. Müller Leena Hamberg Martti Varama |
| author_sort | Michael M. Müller |
| collection | DOAJ |
| description | Unequivocal evidence on the antagonistic effects of endophytic fungi associated with woody plants against insect herbivores has been documented in only a few cases so far. Experimental evidence of the significance of needle endophytes to coniferous trees has remained scant because it is difficult to obtain trees with needles free of endophytes that could be used as comparable controls for trees infected with endophytes. Previously we reported a new methodology to get Norway spruce (Picea abies (L.) Karst.) saplings without needle endophytes and to inoculate them with a needle endophyte Lophodermium piceae (Fuckel) Höhn. Here we describe the first trial where spruce saplings with and without needle endophytes were provided as substrate for insect larvae. We transferred larvae of two sawfly species, Neodiprion sertifer Geoffroy and Gilpina pallida Klug, to the seedlings. Even though the main host of these sawfly species is not Norway spruce, but Scots pine (Pinus sylvestris L.), they are also known to occasionally feed on spruce. In this experiment the larvae did not develop to pupae with the provided spruce substrate but consumed measurable amounts of needles. No significant difference was found between the extent of needles consumed by either of the two sawfly species in inoculated and uninoculated saplings. |
| first_indexed | 2024-03-07T22:57:48Z |
| format | Article |
| id | doaj.art-0109bb465ffe4de29f126d44cf966c8d |
| institution | Directory Open Access Journal |
| issn | 2242-4075 |
| language | English |
| last_indexed | 2024-03-07T22:57:48Z |
| publishDate | 2023-10-01 |
| publisher | Finnish Society of Forest Science |
| record_format | Article |
| series | Silva Fennica |
| spelling | doaj.art-0109bb465ffe4de29f126d44cf966c8d2024-02-22T19:11:59ZengFinnish Society of Forest ScienceSilva Fennica2242-40752023-10-0157310.14214/sf.23026Palatability of Norway spruce needles infected with Lophodermium piceae to larvae of two sawfly speciesMichael M. Müller0https://orcid.org/0000-0003-3699-2139Leena Hamberg1https://orcid.org/0000-0002-0009-7768Martti Varama2Natural Resources Institute Finland (Luke), Forest Health and Biodiversity, P.O. Box 2, 00791 Helsinki, FinlandNatural Resources Institute Finland (Luke), Forest Health and Biodiversity, P.O. Box 2, 00791 Helsinki, FinlandNatural Resources Institute Finland (Luke), Forest Health and Biodiversity, P.O. Box 2, 00791 Helsinki, FinlandUnequivocal evidence on the antagonistic effects of endophytic fungi associated with woody plants against insect herbivores has been documented in only a few cases so far. Experimental evidence of the significance of needle endophytes to coniferous trees has remained scant because it is difficult to obtain trees with needles free of endophytes that could be used as comparable controls for trees infected with endophytes. Previously we reported a new methodology to get Norway spruce (Picea abies (L.) Karst.) saplings without needle endophytes and to inoculate them with a needle endophyte Lophodermium piceae (Fuckel) Höhn. Here we describe the first trial where spruce saplings with and without needle endophytes were provided as substrate for insect larvae. We transferred larvae of two sawfly species, Neodiprion sertifer Geoffroy and Gilpina pallida Klug, to the seedlings. Even though the main host of these sawfly species is not Norway spruce, but Scots pine (Pinus sylvestris L.), they are also known to occasionally feed on spruce. In this experiment the larvae did not develop to pupae with the provided spruce substrate but consumed measurable amounts of needles. No significant difference was found between the extent of needles consumed by either of the two sawfly species in inoculated and uninoculated saplings.https://www.silvafennica.fi/article/23026antagonism; herbivory; fungi; neodiprion sertifer; gilpinia pallida; palatability |
| spellingShingle | Michael M. Müller Leena Hamberg Martti Varama Palatability of Norway spruce needles infected with Lophodermium piceae to larvae of two sawfly species Silva Fennica antagonism; herbivory; fungi; neodiprion sertifer; gilpinia pallida; palatability |
| title | Palatability of Norway spruce needles infected with Lophodermium piceae to larvae of two sawfly species |
| title_full | Palatability of Norway spruce needles infected with Lophodermium piceae to larvae of two sawfly species |
| title_fullStr | Palatability of Norway spruce needles infected with Lophodermium piceae to larvae of two sawfly species |
| title_full_unstemmed | Palatability of Norway spruce needles infected with Lophodermium piceae to larvae of two sawfly species |
| title_short | Palatability of Norway spruce needles infected with Lophodermium piceae to larvae of two sawfly species |
| title_sort | palatability of norway spruce needles infected with lophodermium piceae to larvae of two sawfly species |
| topic | antagonism; herbivory; fungi; neodiprion sertifer; gilpinia pallida; palatability |
| url | https://www.silvafennica.fi/article/23026 |
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