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Abundance of Coffee berry borer in feral, abandoned and managed coffee on Hawaii Island
Journal of Applied Entomology ( IF 1.9 ) Pub Date : 2020-07-22 , DOI: 10.1111/jen.12804
Melissa A. Johnson 1, 2 , Nicholas C. Manoukis 1
Affiliation  

Coffee berry borer (Hypothenemus hampei Ferrari), the most damaging insect pest of coffee worldwide, was first detected on Hawaii Island in 2010. Poorly managed, abandoned and feral coffee sites on the island have since been thought to harbour coffee berry borer (CBB) populations, which then negatively impact neighbouring coffee farms. In the present study, we sought to quantify CBB abundance in these sites, which vary in management intensity and vegetation structure and diversity. We collected data on trap catch as a measure of CBB flight activity, fruit production and fruit infestation by CBB in eight well‐managed farms and sites that were either poorly managed, abandoned or feral (wild) coffee. Sites were sampled bi‐weekly over a period of 2 years from 2016 to 2017. We found that CBB flight activity was significantly higher in poorly managed sites relative to abandoned and feral sites, but was not significantly different from well‐managed sites. Coffee production in well‐managed farms was significantly higher than in abandoned and feral sites, but was not significantly different from poorly managed farms. CBB infestation in poorly managed sites was significantly higher than that observed in well‐managed, abandoned and feral sites. We estimated an average load of 11–25 CBB per branch at poorly managed sites, compared to 3–9 per branch at well‐managed sites, 1–16 per branch at abandoned sites and 1–3 per branch at feral sites. Our findings suggest that poorly managed sites should be prioritized for implementation of CBB control measures as part of a landscape‐level integrated pest management (IPM) programme.

中文翻译:

夏威夷岛上野生、废弃和管理的咖啡中大量咖啡浆果蛀虫

咖啡浆果螟(Hypothenemus hampei Ferrari)是世界上最具破坏性的咖啡害虫,于 2010 年首次在夏威夷岛上被发现。岛上管理不善、废弃和野生的咖啡场所被认为是咖啡浆果螟(CBB)的栖息地人口,然后对邻近的咖啡农场产生负面影响。在本研究中,我们试图量化这些地点的 CBB 丰度,这些地点的管理强度、植被结构和多样性各不相同。我们收集了有关陷阱捕获的数据,作为衡量 CBB 飞行活动、水果生产和 CBB 在八个管理良好的农场和地点的水果侵扰的数据,这些农场和地点要么是管理不善、被遗弃或野生(野生)咖啡。从 2016 年到 2017 年的两年时间里,每两周对站点进行一次采样。我们发现,相对于废弃和野生站点,管理不善的站点的 CBB 飞行活动显着更高,但与管理良好的站点没有显着差异。管理良好的农场的咖啡产量明显高于废弃和野地,但与管理不善的农场没有显着差异。管理不善地点的 CBB 感染显着高于管理良好、废弃和野生地点的感染。我们估计管理不善的站点的每个分支的平均负载为 11-25 CBB,而管理良好的站点的每个分支为 3-9,废弃站点的每个分支为 1-16,而野生站点的每个分支为 1-3。我们的研究结果表明,作为景观级综合虫害管理 (IPM) 计划的一部分,应优先实施管理不善的场地,以实施 CBB 控制措施。
更新日期:2020-07-22
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