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    Induced defences in kawakawa (Macropiper excelsum): do caterpillars avoid previous leaf damage?

    Wratten, Stephen D.; Hodge, Simon; Barron, Mandy C.
    Abstract
    This study examined whether two species of lepidopteran larvae (Cleora scriptaria and Epiphyas postvittana) were deterred from feeding on the leaves of kawakawa (Macropiper excelsum) after the leaves had been damaged in three different ways: by larval feeding, using a hole punch or a metal rasp. A hierarchy of choice experiments was performed in the laboratory, examining the feeding 'preference' of these insects between undamaged or previously damaged tissue within the same leaf, between different leaves and between different plants. On no occasion did larvae of either species show a significant preference for undamaged or damaged leaves. It is concluded that, on present evidence, kawakawa does not have a system of induced chemical defences which deters the feeding of these two insects.... [Show full abstract]
    Keywords
    kawakawa; Macropiper excelsum; Cleora scriptaria; Epiphyas postvittana; induced defences; herbivory; wound-induced changes; Ecology
    Fields of Research
    0602 Ecology
    Date
    2000
    Type
    Journal Article
    Collections
    • Department of Pest Management and Conservation [638]
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    NZJEcol24_1_91.pdf
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    Copyright © New Zealand Ecological Society
    Citation
    Hodge, S., Barron, M., & Wratten, S. D. (2000). Induced defences in kawakawa (Macropiper excelsum): Do caterpillars avoid previous leaf damage? New Zealand Journal of Ecology, 24(1), 91-95.
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