The coffee berry borer (CBB) is one of the main coffee pests in the world including Colombia. This pest is difficult to manage because of its cryptic habits and the continuous availability of coffee fruits. Among the new management strategies being tested is the use of volatile compounds as insect repellents. In this work, the behavioral response of female adult CBBs to terpenes previously identified in the CBB-repellent plant species Lantana camara was evaluated. α-Terpinene, (R)-limonene, farnesene and β-caryophyllene terpenes were tested via a Y-tube olfactometer in which ripe coffee fruits were accompanied by terpenes at concentrations between 25 and 200 ppm. Only β-caryophyllene induced a significant and consistent CBB repellent effect at all tested doses. The protective effect of microencapsulated β-caryophyllene was then determined under laboratory conditions by incorporating the terpene in a colloidosome-gel system at 2.8 × 10⁵ ng/h in the middle of coffee fruits with adult CBBs. The coffee fruits in turn presented a decrease in fruit infestation. Furthermore, the protection of coffee fruits when β-caryophyllene gels were hung in coffee trees was evaluated in the field; infestations were artificially induced by the use of raisins (CBB-infested old coffee fruits) placed on the ground. Compared with unprotected trees, the trees treated with caryophyllene gels exhibited a 33 to 45% lower degree of infestation. Taken together, the results show that β-caryophyllene is a promising compound for an integrated pest management (IPM) program in commercial coffee plantations.

中文翻译：

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评估对咖啡浆果Bor虫（Hypothenemus hampei，Ferrari）（鞘翅目：Curculionidae）的萜烯挥发性化合物的驱虫剂。

咖啡果蛀虫（CBB）是包括哥伦比亚在内的世界上主要的咖啡害虫之一。由于其隐秘的习惯和咖啡果的持续供应，很难控制这种害虫。正在测试的新管理策略中包括使用挥发性化合物作为驱虫剂。在这项工作中，评估了成年CBB雌性对先前在CBB排斥植物马Lan丹（Lantana camara）中鉴定出的萜烯的行为响应。α-松油烯（R柠檬烯，法呢烯和β-石竹烯萜烯通过Y型管嗅觉仪进行测试，其中成熟的咖啡果实中的萜烯浓度在25至200 ppm之间。在所有测试剂量下，仅β-石竹烯能诱导显着且一致的CBB驱避作用。然后在实验室条件下，通过将萜烯以2.8×10 ⁵的浓度掺入胶体-凝胶体系中，确定微囊化β-石竹烯的保护作用。ng / h，咖啡果中含有成人CBB。咖啡果实反过来减少了果实的侵扰。此外，在野外评估了在咖啡树中悬挂β-石竹烯凝胶时对咖啡果实的保护作用。侵染是通过使用置于地面上的葡萄干（被CBB感染的老咖啡水果）人工诱导的。与未保护的树木相比，用石竹烯凝胶处理的树木的侵染程度降低了33％至45％。两者合计，结果表明，β-石竹烯是商业咖啡种植园中有害生物综合治理（IPM）计划中很有希望的化合物。