Abstract

Abstract Australian fruitspotting bugs, Amblypelta nitida Stal and A. lutescens lutescens Distant (Hemiptera: Coreidae), are major economic pests of macadamia nuts in Australia. They are also pests of approximately a dozen other tropical and subtropical horticultural crops, and minor pests of many more. They are endemic to the east and northern coastal regions of Australia and as such are distributed across the entire growing region of Australia’s macadamia industry. Although the industry is reliant on synthetic pesticides for several major pests and diseases, including fruitspotting bugs, biological control of a major pest, the macadamia nutborer, Cryptophlebia ombrodelta Lower (Lepidoptera: Tortricidae), has been successful and is widely adopted. This success has set a precedent within the macadamia industry and provided incentive for research and development of other biological control agents for other important pests. In the early 1990s, a hymenopteran egg parasitoid,

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