The effect of constitutive resistance in lodgepole pine (Pinus contorta) and Scots pine (P-sylvestris) on oviposition by three pine feeding herbivores

KE Trewhella, SR Leather, KR Day

    Research output: Contribution to journalArticle

    7 Citations (Scopus)

    Abstract

    The acceptance of different provenances or seed origins of lodgepole pine Pinus contorta and Scots pine P. sylvestris as suitable oviposition sites was found to vary as a function of both tree age and insect species. Experiments on seedling lodgepole pine revealed that the pine sawfly, Neodiprion sertifer Geoffroy (Hymenoptera: Diprionidae), and the larch bud moth, Zeiraphera diniana Guennee (Lepidoptera: Tortricidae), preferred more southerly provenances of lodgepole pine. The pine beauty moth, Panolis flammea Denis & Schiffermuller (Lepidoptera: Noctuidae), however, preferred more northerly provenances. On mature lodoepole pine however, P. flammea exhibited a host change, preferring the more southerly provenances. Neodiprion sertifer showed a similar preference on both seedling and mature provenances. The results of this study suggest that some provenances of lodgepole pine become more resistant to attack by P. flammea as they mature, while others become more susceptible. This may be related to the feeding strategies of the two insects: P. flammea larvae feed on current year foliage while N. sertiJeu feeds only on previous year foliage. It is possible that the mechanism for chemical defence of new shoots changes as the trees mature, and to a varying degree in different provenances, while defence of the previous years foliage remains unchanged. Results also indicate that odour alone as opposed to odour plus visual stimulation may invoke different ovipositional behaviour in N. sertifer.
    LanguageEnglish
    Pages81-88
    JournalBulletin of Entomological Research
    Volume87
    Issue number1
    Publication statusPublished - Feb 1997

    Fingerprint

    Pinus contorta
    Pinus contorta var. latifolia
    Panolis flammea
    provenance
    Pinus sylvestris
    herbivores
    oviposition
    Pinus
    Neodiprion sertifer
    Zeiraphera diniana
    Lepidoptera
    odors
    Diprionidae
    leaves
    feeding methods
    sawflies
    insects
    oviposition sites
    seedlings
    tree age

    Cite this

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    title = "The effect of constitutive resistance in lodgepole pine (Pinus contorta) and Scots pine (P-sylvestris) on oviposition by three pine feeding herbivores",
    abstract = "The acceptance of different provenances or seed origins of lodgepole pine Pinus contorta and Scots pine P. sylvestris as suitable oviposition sites was found to vary as a function of both tree age and insect species. Experiments on seedling lodgepole pine revealed that the pine sawfly, Neodiprion sertifer Geoffroy (Hymenoptera: Diprionidae), and the larch bud moth, Zeiraphera diniana Guennee (Lepidoptera: Tortricidae), preferred more southerly provenances of lodgepole pine. The pine beauty moth, Panolis flammea Denis & Schiffermuller (Lepidoptera: Noctuidae), however, preferred more northerly provenances. On mature lodoepole pine however, P. flammea exhibited a host change, preferring the more southerly provenances. Neodiprion sertifer showed a similar preference on both seedling and mature provenances. The results of this study suggest that some provenances of lodgepole pine become more resistant to attack by P. flammea as they mature, while others become more susceptible. This may be related to the feeding strategies of the two insects: P. flammea larvae feed on current year foliage while N. sertiJeu feeds only on previous year foliage. It is possible that the mechanism for chemical defence of new shoots changes as the trees mature, and to a varying degree in different provenances, while defence of the previous years foliage remains unchanged. Results also indicate that odour alone as opposed to odour plus visual stimulation may invoke different ovipositional behaviour in N. sertifer.",
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    The effect of constitutive resistance in lodgepole pine (Pinus contorta) and Scots pine (P-sylvestris) on oviposition by three pine feeding herbivores. / Trewhella, KE; Leather, SR; Day, KR.

    In: Bulletin of Entomological Research, Vol. 87, No. 1, 02.1997, p. 81-88.

    Research output: Contribution to journalArticle

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