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Abstract：
This study investigated the efficacy of using Vikane gas fumigant (sulfuryl fluoride) at the 1.9× dosage rate for eliminating bed bugs (Cimex lectularius L.) in two challenging infestation situations: personal vehicles, and confined spaces densely packed with personal belongings. The vehicles used in this study were large minivans with seating that folded into the floor. The confined spaces were cargo trailers filled to 85% capacity with books, furniture, and other household items. Each van and trailer was equipped with ~90 sentinel bed bugs consisting of three groups of 9-11 bed bug eggs, 10 nymphs, and 10 adults. The Vikane Fumiguide calculator was used to determine the target dosage (g-h/m3) to apply in each replicate (e.g., one van or trailer). Sulfuryl fluoride concentrations were measured throughout the fumigation process using a Spectros SF-ReportIR. Concentration readings were input into the Fumiguide to determine when the accumulated dosage (g-h/m3) was achieved, and when aeration should be initiated. After aeration was complete, the sentinel bed bugs were removed from the replicates and bed bug nymph and adult mortality was recorded. Bed bug eggs were monitored for 23 d to determine latent mortality. Fumigated bed bug mortality for each replication was 100% regardless of life stage. Latent mortality was observed in a single bed bug egg, but the first instar never fully eclosed. This study determined that fumigation with sulfuryl fluoride at the 1.9× dosage factor is an effective method for eliminating resistant bed bugs from vehicles and personal belongings in densely packed situations.
摘要：
这项研究调查了在两种具有挑战性的侵扰情况下，以1.9×剂量率使用Vikane气体熏蒸剂（磺酰氟）消除臭虫（CimexlectulariusL.）的功效：个人车辆，和封闭的空间密集的个人物品。本研究中使用的车辆是带有折叠到地板上的座椅的大型小型货车。狭窄的空间是载满85%容量的货物拖车，家具,和其他家庭用品。每辆面包车和拖车都装有约90只前哨臭虫，由三组9-11臭虫卵组成，10个若虫,10个成年人。VikaneFumiguide计算器用于确定在每个重复中应用的目标剂量（g-h/m3）（例如，一辆面包车或拖车)。使用SpectrosSF-ReportIR在整个熏蒸过程中测量硫酰氟浓度。将浓度读数输入到Fumiguide中，以确定何时达到累积剂量（g-h/m3）。以及何时应该开始曝气。曝气完成后，将前哨臭虫从重复中去除，并记录臭虫若虫和成年死亡率。监测臭虫卵23d以确定潜在死亡率。无论生命阶段如何，每次复制的熏蒸臭虫死亡率均为100％。在单个臭虫卵中观察到潜伏死亡率，但是第一龄幼虫从未完全关闭。这项研究确定，以1.9倍的剂量因子用硫酰氟熏蒸是在密集包装的情况下消除车辆和个人物品中的抗性臭虫的有效方法。
