The Indian meal moth Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae), is controlled by commercial mating disruption dispensers using passive release to emit high concentrations (relative to females or monitoring lures) of their principal sex pheromone component, (9Z,12E)-tetradecadienyl acetate. Since P. interpunctella is sexually active throughout the scotophase, an assay system was developed to determine the importance of direct interaction of the male with the dispenser, and whether exposure to mating disruption early in the night is sufficient to suppress mating throughout the night. Exposure to mating disruption dispensers in the mating assay chamber for the first two hours of a 10-h scotophase significantly reduced mating when females were introduced four hours later. Mating was also reduced to a lesser degree in a concentration-dependent manner based solely on re-emission of pheromone, and when males were exposed outside the mating assay chamber. These results indicate that the commercial mating disruption dispensers can suppress mating throughout the night based on interaction with the dispenser early in the night. Desensitization resulting from attraction to a high-concentration pheromone source is important to this suppression, but other factors such as re-emission from the environment may also have a role. These observations imply a non-competitive mechanism for P. interpunctella with the product studied, and suggest that effectiveness of the mating disruption dispenser might be augmented by using them in conjunction with another formulation such as an aerosol or micro-encapsulated product.

中文翻译：

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在存在和不存在商业交配干扰分配器的情况下，持续抑制印度菜蛾Pludia interpunctella的交配

印度菜蛾Plodia interpunctella（Hübner）（鳞翅目：Pyralidae）受商业交配干扰分配器控制，使用被动释放来释放其主要性信息素成分的高浓度（相对于雌性或诱饵）（9Z，12 E） -十四碳二烯基乙酸酯。自点球假单胞菌以来在整个上位期性活跃，开发了一种测定系统来确定雄性与分配器直接相互作用的重要性，以及在深夜暴露于交配破坏是否足以抑制整个晚上的交配。当在十小时的禁食期的头两个小时内，在交配测定室中暴露于交配破坏分配器时，当雌性在四个小时后被引入时，显着减少了交配。仅基于信息素的再排放以及当雄性暴露于交配试验室之外时，以浓度依赖的方式减少交配的程度。这些结果表明，商业性交配破坏分配器可以基于与清晨的分配器的交互作用而在整个晚上抑制交配。吸引高浓度信息素源引起的脱敏对于这种抑制很重要，但是其他因素（例如从环境中再排放）也可能起作用。这些观察结果暗示了一种非竞争性机制穿刺假单胞菌与所研究的产品一起，并建议通过将它们与另一种制剂（如气雾剂或微囊化产品）结合使用，可以增强交配干扰分配器的有效性。