Predation by flat bark beetles (Coleoptera: Silvanidae and Laemophloeidae) on coffee berry borer (Coleoptera: Curculionidae) in Hawaii coffee
Predation by flat bark beetles (Coleoptera: Silvanidae and Laemophloeidae) on coffee berry borer (Coleoptera: Curculionidae) in Hawaii coffee
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DOI：
10.1016/j.biocontrol.2016.07.002
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发表时间：
2016-10-01
影响因子：
4.2
通讯作者：
Geib, Scott
中科院分区：
文献类型：
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作者：
Follett, Peter A.;Kawabata, Andrea;Geib, Scott
咖啡浆果蛀虫（CBB）是世界范围内的一种严重的咖啡害虫，也是夏威夷的一种新的入侵害虫。成虫主要为Leptophloeus sp.（75%）和Cathartus quadricollis(21%)（鞘翅目：夜蛾科和银蛾科），分子标记研究证实其以CBB为食。这项研究是为了更好地了解这些捕食者的生态学，并探索如何增加它们在抑制咖啡中CBB种群中的作用。实验室摄食实验表明，扁皮甲虫成虫和幼虫在CBB的所有生命阶段都有摄食能力。这些捕食者广泛分布在夏威夷岛上的咖啡种植区，但它们主要以树上的干咖啡为食，而不是以成熟的浆果为食。从树上的干豆中提取的漏斗状扁平树皮甲虫表明，捕食者的数量可能相对较高（每150个豆样本中多达23个成年捕食者）。采用真菌生物农药球孢白僵菌（Beauveria bassiana）对咖啡中CBB进行田间防治。Leptophloeus sp.和C. quadricollis可以很容易地以破碎的玉米和玉米粉为食。增加释放平皮甲虫捕食者如Leptophloeus sp.和C. quadricollis可能是害虫综合管理计划的一个有用的组成部分，以对付咖啡浆果螟虫和其他穗状虫害虫。Elsevier Inc.出版。
Coffee berry borer (CBB), Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae) is a serious pest of coffee worldwide and a new invasive pest in Hawaii. Adult flat bark beetles, mainly Leptophloeus sp. (75%) and Cathartus quadricollis (21%) (Coleoptera: Laemophloeidae and Silvanidae, respectively), were found inside CBB-infested coffee beans on the tree and molecular marker studies confirmed feeding on CBB. Research was conducted to better understand the ecology of these predators and explore ways to increase their role in suppressing CBB populations in coffee. Laboratory feeding assays demonstrated the capacity for adult and larval flat bark beetles to feed on all CBB life stages. The predators are widely distributed in the coffee growing areas on the island of Hawaii, but feed mainly in dried coffee on the tree rather than in ripening berries where initial crop damage occurs. Berlese funnel extraction of flat bark beetles from dried beans on the tree indicated that predator numbers can be relatively high (up to 23 adult predators per 150 bean sample). C. quadricollis was not susceptible to infection by the fungal biopesticide Beauveria bassiana which is used for field control of CBB in coffee. Leptophloeus sp. and C. quadricollis can be raised easily on a diet of cracked corn and cornmeal. Augmentative releases of generalist flat bark beetle predators like Leptophloeus sp. and C. quadricollis may be a useful component of integrated pest management programs against coffee berry borer and other scolytine pests. Published by Elsevier Inc.