Mealybugs are phloem-feeding insects found on many crops worldwide. In New Zealand vineyards, they transmit the economically important Grapevine leafroll-associated virus 3 (GLRaV-3). For some mealybug species, synthetic sex pheromones have been commercialised, and are used as monitoring tools. The mealybugs Pseudococcus longispinus and Pseudococcus calceolariae are major pests in many New Zealand vineyards. We present work on the development of a combined P. longispinus and P. calceolariae pheromone lure. The optimal dose for monitoring P. longispinus was found to be 10 µg of the (S)-(+)-enantiomer, either alone or in the racemic mixture. Addition of the corresponding alcohol did not improve trap catch of P. longispinus. Both the P. longispinus and the P. calceolariae pheromone lures remained active in the field for 90 days. Combining the 2 species’ pheromones had no negative effects on male mealybug trap catch for either species. We conclude that the pheromone ester alone is the best lure for the male P. longispinus. Combining the two mealybug species’ pheromones into a single lure provides the New Zealand viticultural industry with an efficient monitoring tool. Late-vintage deployment of baited lures will provide information on mealybug abundance and local distribution that will inform the scope of future insecticide programmes, to target areas based on need rather than an area-wide application by default.

粉蚧是在全世界许多作物上发现的以韧皮部为食的昆虫。在新西兰的葡萄园中，它们传播经济上重要的葡萄卷叶相关病毒 3 (GLRaV-3)。对于一些粉蚧物种，合成的性信息素已经商业化，并被用作监测工具。粉蚧Pseudococcus longispinus和Pseudococcus calceolariae是新西兰许多葡萄园的主要害虫。我们目前正在开发一种组合的P. longispinus和P. calceolariae信息素诱饵。发现监测P. longispinus的最佳剂量是 10 µg ( S)-(+)-对映异构体，单独或在外消旋混合物中。添加相应的酒精并不能提高长刺梭菌的诱捕效果。P. longispinus和P. calceolariae信息素诱饵在田间保持活跃 90 天。结合这 2 个物种的信息素对任一物种的雄性粉蚧捕获没有负面影响。我们得出结论，单独的信息素酯是雄性P. longispinus的最佳诱饵. 将两种粉蚧物种的信息素组合成一个诱饵，为新西兰葡萄种植业提供了一种有效的监测工具。老式诱饵的部署将提供有关粉蚧丰度和当地分布的信息，这些信息将为未来杀虫剂计划的范围提供信息，根据需要而不是默认情况下在区域范围内应用目标区域。