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.

中文翻译：

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使用 1.9 倍剂量因子在机动车辆和装满货物的拖车中对硫酰氟熏蒸防治常见臭虫（半翅目：蜈蚣科）进行现场评估

本研究调查了使用 1.9 倍剂量率的 Vikane 气体熏蒸剂（硫酰氟）在两种具有挑战性的侵扰情况下消除臭虫 (Cimex lectularius L.) 的效果：私人车辆和密闭空间中密密麻麻的个人物品。本研究中使用的车辆是大型小型货车，其座椅可折叠到地板上。密闭空间是装满书籍、家具和其他家居用品的 85% 容量的货物拖车。每辆货车和拖车都配备了约 90 只哨兵臭虫，由三组 9-11 只臭虫卵、10 只若虫和 10 只成虫组成。Vikane Fumiguide 计算器用于确定在每个重复（例如，一辆货车或拖车）中应用的目标剂量（gh/m3）。使用 Spectros SF-ReportIR 在整个熏蒸过程中测量硫酰氟浓度。将浓度读数输入 Fumiguide 以确定何时达到累积剂量 (gh/m3) 以及何时开始曝气。曝气完成后，将哨兵臭虫从复制品中移除，并记录臭虫若虫和成虫死亡率。监测臭虫卵 23 天以确定潜伏死亡率。无论生命阶段如何，每次复制的熏蒸臭虫死亡率为 100%。在单个臭虫卵中观察到潜在死亡率，但第一龄从未完全闭合。本研究确定在 1 处用硫酰氟熏蒸。