Red de Manejo Biorracional de Plagas y Vectores, Instituto de Ecología AC, Xalapa, Veracruz, Mexico.
Departamento de Investigación Aplicada, Driscoll's, Zapopan, Jalisco, Mexico.
PLoS One. 2017 Nov 17;12(11):e0188350. doi: 10.1371/journal.pone.0188350. eCollection 2017.
The improvement of trap-lure combinations is an important part of integrated pest management programs that involve monitoring pests for timely insecticide applications, or for their use in control strategies such as mass trapping or bait stations. In this study improvements in the capture of Drosophila suzukii were not observed following the inclusion of different color stimuli with respect to a red-black stripe cup trap. This red-black stripe trap with a hemispherical dome-shaped lid had a significantly improved physical retention of flies compared to traps fitted with a flat lid. Retention was further improved when an additional tube device, which could be baited with a supplemental attractant, was introduced through the dome-shaped lid. Under laboratory conditions, this trap, in which apple cider vinegar + 10% ethanol was present as the drowning solution and the additional tube device was baited with a fermenting mixture of sugar and yeast, was significantly more effective in catching D. suzukii flies than other conventional attractants or a commercial lure. The capture rate of this trap-lure combination remained higher than that of a commercial lure, even after 20 days of use under laboratory conditions. In a guava orchard this trap was 15-fold more effective in catching D. suzukii flies than similar traps baited with apple cider vinegar alone, 4 to 7 fold more effective than similar traps baited with a commercial lure, and 1.7-fold more effective than a fermenting mixture of yeasts and wheat flour. In commercial blackberry orchards, this trap was 6-fold more effective in trapping D. suzukii flies than the clear trap baited with apple cider vinegar used by growers. The efficacy of this trap presents a promising line of future research for monitoring and control of D. suzukii and likely other drosophilid pests.
陷阱-诱饵组合的改进是综合虫害管理计划的重要组成部分，该计划涉及监测害虫，以便及时应用杀虫剂，或用于大规模诱捕或诱饵站等控制策略。在这项研究中，与红色-黑色条纹杯形诱捕器相比，包含不同颜色刺激物并没有观察到对果蝇的诱捕效果的改善。与配备平盖的诱捕器相比，带有半球形圆顶形盖子的这种红色-黑色条纹诱捕器对苍蝇的物理保留有明显改善。当通过圆顶形盖子引入可以用补充引诱剂诱饵的附加管装置时，保留效果进一步提高。在实验室条件下，这种诱捕器中，苹果醋+10%乙醇作为溺死溶液存在，并且附加管装置用糖和酵母发酵混合物诱饵，与其他常规引诱剂或商业诱饵相比，诱捕果蝇的效果显著提高。即使在实验室条件下使用 20 天后，这种诱捕器-诱饵组合的捕获率仍高于商业诱饵。在番石榴果园中，与单独用苹果醋诱饵的类似诱捕器相比，这种诱捕器诱捕果蝇的效率高 15 倍，与用商业诱饵诱饵的类似诱捕器相比，效率高 4 到 7 倍，与酵母和小麦粉发酵混合物相比，效率高 1.7 倍。在商业黑莓果园中，与种植者使用的苹果醋诱捕的透明诱捕器相比，这种诱捕器诱捕果蝇的效率高 6 倍。这种诱捕器的功效为监测和控制果蝇和可能其他果蝇害虫提供了有前途的未来研究方向。
