The effect of colony isolation of the predacious ant, oecophylla smaragdina (f.) (hymenoptera: Formicidae), on protection of cashew plantations from insect pests

R.K. Peng, K. Christian, K. Gibb

    Research output: Contribution to journalArticleResearchpeer-review

    Abstract

    Fierce boundary fights between Oecophylla smaragdina colonies were previously identified as the major factor limiting ant populations and the efficiency of ants as biological control agents. In order to determine the feasibility and effect ofpreventing boundary fights between colonies, experiments with full-, semi- and no-isolation of existing antcolonies in cashew plantations were done in 1996 and 1997. In a related experiment, ant colonies were transplanted from native vegetation to a cashew orchard. Trees with ant colonies which were fully isolated from other colonies were significantly less damaged by the main insect pests and produced significantly higher yield than those with ant colonies which were partly isolated or were not isolated. That was because fighting events between fully isolated ant colonies were eliminated, and the populations of these colonies were high throughout the cashew flowering and fruiting period. Trees in which O. smaragdina colonies were transplanted suffered little damage by the main insect pests and produced high quality nuts and panicles. However, trees which were protected by pesticides produced lower quality nuts and panicles, because these trees suffered damage by the tea mosquito bug, Helopeltis pernicialis, and the mango tip borer, Penicillaria jocosatrix. It is suggested that O. smaragdina colony isolation, combined with ant transplantation, is an effective means both to achieve high ant populations in cashew plantations and to obtain a high yield.
    Original languageEnglish
    Pages (from-to)189-194
    Number of pages6
    JournalInternational Journal of Pest Management
    Volume45
    Issue number3
    DOIs
    Publication statusPublished - 1 Jan 1999

    Fingerprint

    Oecophylla smaragdina
    cashew nuts
    insect pests
    Formicidae
    plantations
    Hymenoptera
    Penicillaria jocosatrix
    nuts
    Helopeltis
    Helopeltis theivora
    inflorescences
    cashew fruit
    tree damage
    edge effects
    mangoes
    biological control agents
    fruiting
    orchards
    pesticides
    flowering

    Cite this

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    title = "The effect of colony isolation of the predacious ant, oecophylla smaragdina (f.) (hymenoptera: Formicidae), on protection of cashew plantations from insect pests",
    abstract = "Fierce boundary fights between Oecophylla smaragdina colonies were previously identified as the major factor limiting ant populations and the efficiency of ants as biological control agents. In order to determine the feasibility and effect ofpreventing boundary fights between colonies, experiments with full-, semi- and no-isolation of existing antcolonies in cashew plantations were done in 1996 and 1997. In a related experiment, ant colonies were transplanted from native vegetation to a cashew orchard. Trees with ant colonies which were fully isolated from other colonies were significantly less damaged by the main insect pests and produced significantly higher yield than those with ant colonies which were partly isolated or were not isolated. That was because fighting events between fully isolated ant colonies were eliminated, and the populations of these colonies were high throughout the cashew flowering and fruiting period. Trees in which O. smaragdina colonies were transplanted suffered little damage by the main insect pests and produced high quality nuts and panicles. However, trees which were protected by pesticides produced lower quality nuts and panicles, because these trees suffered damage by the tea mosquito bug, Helopeltis pernicialis, and the mango tip borer, Penicillaria jocosatrix. It is suggested that O. smaragdina colony isolation, combined with ant transplantation, is an effective means both to achieve high ant populations in cashew plantations and to obtain a high yield.",
    keywords = "ant, management practice, plantation, potential biocontrol agent, Formicidae, Helopeltis pernicialis, Heteroptera, Hymenoptera, Lepidoptera, Miridae, Noctuidae, Oecophylla smaragdina, Penicillaria jocosatrix",
    author = "R.K. Peng and K. Christian and K. Gibb",
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    T1 - The effect of colony isolation of the predacious ant, oecophylla smaragdina (f.) (hymenoptera: Formicidae), on protection of cashew plantations from insect pests

    AU - Peng, R.K.

    AU - Christian, K.

    AU - Gibb, K.

    PY - 1999/1/1

    Y1 - 1999/1/1

    N2 - Fierce boundary fights between Oecophylla smaragdina colonies were previously identified as the major factor limiting ant populations and the efficiency of ants as biological control agents. In order to determine the feasibility and effect ofpreventing boundary fights between colonies, experiments with full-, semi- and no-isolation of existing antcolonies in cashew plantations were done in 1996 and 1997. In a related experiment, ant colonies were transplanted from native vegetation to a cashew orchard. Trees with ant colonies which were fully isolated from other colonies were significantly less damaged by the main insect pests and produced significantly higher yield than those with ant colonies which were partly isolated or were not isolated. That was because fighting events between fully isolated ant colonies were eliminated, and the populations of these colonies were high throughout the cashew flowering and fruiting period. Trees in which O. smaragdina colonies were transplanted suffered little damage by the main insect pests and produced high quality nuts and panicles. However, trees which were protected by pesticides produced lower quality nuts and panicles, because these trees suffered damage by the tea mosquito bug, Helopeltis pernicialis, and the mango tip borer, Penicillaria jocosatrix. It is suggested that O. smaragdina colony isolation, combined with ant transplantation, is an effective means both to achieve high ant populations in cashew plantations and to obtain a high yield.

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    KW - management practice

    KW - plantation

    KW - potential biocontrol agent, Formicidae

    KW - Helopeltis pernicialis

    KW - Heteroptera

    KW - Hymenoptera

    KW - Lepidoptera

    KW - Miridae

    KW - Noctuidae

    KW - Oecophylla smaragdina

    KW - Penicillaria jocosatrix

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    JO - International Journal of Pest Management

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