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首页> 外文期刊>Journal of Economic Entomology >Postharvest Population Reservoirs of Coffee Berry Borer (Coleoptera: Curculionidae) on Hawai'i Island
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Postharvest Population Reservoirs of Coffee Berry Borer (Coleoptera: Curculionidae) on Hawai'i Island

机译：咖啡莓果钻孔壶（鞘翅目：Curculionidae）在夏威夷岛上的波萨多

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摘要

Coffee berry borer, Hypothenemus hampei Ferrari (Coleoptera: Curculionidae: Scolytinae), is the most damaging insect pest of coffee worldwide. Old coffee berries (raisins) are widely acknowledged as coffee berry borer reservoirs, yet few studies have attempted to quantify coffee berry borer populations in raisins remaining on farms postharvest. We collected ground and tree raisins at six coffee farms on Hawai'i Island to assess raisin density, infestation, coffee berry borer abundance, and adult mortality in three areas of each farm: trees, driplines (ground below the tree foliage), and center aisles (ground between tree rows). We also assessed infestation of the new season's crop by conducting whole-tree counts of infested green berries. Mean raisin density was significantly higher in the dripline compared to the center aisle and trees (131 vs 17 raisins per m(2) and 12 raisins per tree, respectively). Raisin infestation was significantly higher in samples from trees (70%) relative to those from the dripline (22%) and center aisle (18%). Tree raisins had significantly higher coffee berry borer abundance compared to both areas of the ground (20 vs 3-5 coffee berry borer per raisin). Adult mortality was significantly higher on the ground (63-71%) compared to the trees (12%). We also observed a significant positive correlation between ground raisin density and infestation of the new season's crop. Across all farms, we estimated that 49.5% of the total coffee berry borer load was present in dripline raisins, 47.3% in tree raisins, and 3.2% in center aisle raisins. Our findings confirm the importance of whole-farm sanitation in coffee berry borer management by demonstrating the negative impact that poor postharvest control can have on the following season's crop.
机译：咖啡浆果Borer，Hypothenemus Hampei Ferrari（Coleoptera：Curculionidae：Scolytinae），是全球咖啡的最具破坏性害虫。旧咖啡浆果（葡萄干）被广泛承认为咖啡浆果Borer水库，但很少有研究已经试图在剩下的农场采地，量化咖啡浆果博勒种群。我们收集了夏威夷岛上的六个咖啡养殖场的地面和树葡萄干，以评估每个农场的三个地区的葡萄干密度，侵扰，咖啡浆果钻头丰富，成人死亡率：树木，铁蓟（树叶下方的地面）和中心过道（树行之间的地面）。我们还通过开展侵染的绿色浆果的全棵树计数来评估对新季节作物的侵犯。与中央过道和树木相比，司布的平均葡萄干密度显着较高（分别为每棵树每棵树为12）和12个葡萄干）。葡萄干侵扰在树木（70％）的样品相对于来自司石（22％）和中心通道（18％）的样品中显着高。与地面的两个区域相比与树木（12％）相比，成年死亡率显着高（63-71％）。我们还观察到葡萄干密度与新季节作物的侵染之间具有显着的正相关性。遍布所有农场，我们估计，49.5％的咖啡壶硼粉载荷的载体载有49.5％，树葡萄干中47.3％，中心过道葡萄干中的3.2％。我们的调查结果证实了整个农场卫生在咖啡浆果挖掘机管理中的重要性，通过展示可怜的采后控制可能在下列赛季作物中的作物中的负面影响。

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