Enhancing natural enemy mortality of chrysomelids in young eucalypt plantations through habitat manipulation

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Eucalyptus plantations are the future of Australian forestry. In eucalypt plantations leaf-feeding beetles reduce tree growth by an average of 53%, substantially reducing profits. Sustainable management of these pests is best done by maximising the impact of native beneficial agents, eg wasps and spiders. This research will quantify the beneficial insects in plantations and increase their efficacy by manipulating the plantation environment so it provides more of the resources (food & shelter) these beneficials require. This approach is significant as it has not been previously attempted in forestry. Our management recommendations will make the plantation sector more profitable and sustainable.