The vine mealybug, Planococcus ficus, is a global pest of grapes, leading to lower yields and transmission of damaging viral pathogens. Insecticides are the predominate method of P. ficus management, but some pesticide options have been lost in many of the world's vineyard regions and other economically viable options are now critically needed. Mating disruption is commercially available for P. ficus, however recommended deployment rates can be costly. To reduce costs, the effectiveness of lower dispenser deployment rates should be fully explored. In 2018–2019, we tested a novel high-density passive dispenser at 494 dispensers per ha. In 2020–2022 variable rates of the high-density dispenser were tested and a novel meso passive dispenser at variable rates was also tested in separate trails. An insecticide was applied to all treatments in 2018–2019 and to two of four blocks in 2020. All trials occurred in central California, US. The high-density dispensers (494 dispensers per ha) reduced male P. ficus captures and crop damage in both years. High-density dispensers at variable deployment rates (62–370 dispensers per ha) and meso dispensers (62–270 dispensers per ha) reduced P. ficus trap captures, with increasing dispenser density decreasing trap captures. Crop damage, amount of P. ficus per grape cluster, was significantly reduced only in the second year of the meso trial. Mating disruption is an effective method of suppressing P. ficus and current recommend rates could be lowered, which would reduce costs for growers and increase adoption of this sustainable tactic.

葡萄粉虱Planococcus ficus是一种全球性的葡萄害虫，会导致产量下降和破坏性病毒病原体的传播。杀虫剂是P. ficus管理的主要方法，但世界上许多葡萄园地区已经失去了一些杀虫剂选择，现在迫切需要其他经济上可行的选择。交配中断可用于P. ficus，但是建议的部署率可能会很昂贵。为了降低成本，应充分探索降低分配器部署率的有效性。在 2018-2019 年，我们以每公顷 494 个分配器测试了一种新型高密度被动分配器。在 2020-2022 年，对高密度分配器的可变速率进行了测试，并且还在不同的试验中测试了一种新型的可变速率的中观被动分配器。2018-2019 年的所有处理都使用了杀虫剂，2020 年四个街区中的两个都使用了杀虫剂。所有试验都在美国加利福尼亚州中部进行。高密度分配器（每公顷 494 个分配器）在这两年减少了雄性榕树的捕获和作物损害。可变部署率的高密度分配器（每公顷 62-370 个分配器）和细观分配器（每公顷 62-270 个分配器）减少了P. ficus陷阱捕获，随着分配器密度的增加减少陷阱捕获。仅在中观试验的第二年，作物损害（每个葡萄串的榕树数量）才显着减少。交配中断是抑制P. ficus的有效方法，可以降低当前的推荐率，这将降低种植者的成本并增加这种可持续策略的采用。