Instituto de Ciências Agrárias, Universidade Federal de Viçosa, Campus Rio Paranaíba, Rio Paranaíba, MG 38810-000, Brazil.
J Econ Entomol. 2011 Dec;104(6):1909-17. doi: 10.1603/ec11032.
The currently existing sample procedures available for decision-making regarding the control of the coffee berry borer Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae: Scolytinae) are time-consuming, expensive, and difficult to perform, compromising their adoption. In addition, the damage functions incorporated in such decision levels only consider the quantitative losses, while dismissing the qualitative losses. Traps containing ethanol, methanol, and benzaldehyde may allow cheap and easy decision-making. Our objective was to determine the economic injury level (EIL) for the adults of the coffee berry borer by using attractant-baited traps. We considered both qualitative and quantitative losses caused by the coffee borer in estimating the EILs. These EILs were determined for conventional and organic coffee under high and average plant yield. When the quantitative losses caused by H. hampei were considered alone, the EILs ranged from 7.9 to 23.7% of bored berries for high and average-yield conventional crops, respectively. For high and average-yield organic coffee the ELs varied from 24.4 to 47.6% of bored berries, respectively. When qualitative and quantitative losses caused by the pest were considered together, the EIL was 4.3% of bored berries for both conventional and organic coffee. The EILs for H. hampei associated to the coffee plants in the flowering, pinhead fruit, and ripening fruit stages were 426, 85, and 28 adults per attractive trap, respectively.
目前用于咖啡浆果象甲 Hypothenemus hampei (Ferrari)（鞘翅目：象甲科：象甲亚科）防治决策的样本程序既耗时、昂贵又难以执行，因此难以推广。此外，这些决策级别中包含的损害函数仅考虑定量损失，而忽略了定性损失。含有乙醇、甲醇和苯甲醛的诱捕器可以实现廉价且易于决策。我们的目标是使用诱捕器确定咖啡浆果象甲成虫的经济损害水平 (EIL)。我们在估计 EIL 时同时考虑了咖啡象甲造成的定性和定量损失。这些 EIL 是针对高和平均植物产量下的常规和有机咖啡确定的。当仅考虑咖啡浆果象甲造成的定量损失时，高和平均产量常规作物的 EIL 分别为 7.9%至 23.7%的受蛀浆果。对于高和平均产量的有机咖啡，EIL 分别为 24.4%至 47.6%的受蛀浆果。当同时考虑害虫造成的定性和定量损失时，EIL 为常规和有机咖啡中受蛀浆果的 4.3%。与开花、针尖果和成熟果阶段的咖啡植株相关的咖啡浆果象甲 EIL 分别为每只诱捕器 426、85 和 28 只成虫。
