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Sulfuryl fluoride as a methyl bromide alternative for fumigation of Necrobia rufipes (Coleoptera: Cleridae) and Tyrophagus putrescentiae (Sarcoptiformes: Acaridae), major pests of animal-based stored products
Journal of Stored Products Research ( IF 2.7 ) Pub Date : 2021-01-25 , DOI: 10.1016/j.jspr.2021.101769
Md Mahbub Hasan , Michael J. Aikins , M. Wes Schilling , Thomas W. Phillips

Sulfuryl fluoride (SF) has been registered in many countries for stored product applications as an alternative to other fumigants, especially methyl bromide (MB). Research was conducted to establish SF fumigation protocols for the mortality of pests infesting post-harvest durable commodities. The efficacy of SF against two major arthropod pests of southern dry-cured hams, the red-legged ham beetle, Necrobia rufipes, and the ham mite, Tyrophagus putrescentiae, was investigated. SF caused significant mortality in ham beetles but not for ham mites when treated for 48 h at 23 °C. Eggs of N. rufipes were more tolerant to SF than other stages fumigated. In addition, early aged (1–2 d old) eggs of N. rufipes were more susceptible to SF than late-aged (4–5 d old) eggs. Furthermore, SF fumigation led to 100% control of larvae, pupae and adults of N. rufipes by 8 g/m3 while the eggs required 20.88–24.72 g/m3 to prevent 100% hatch. However, T. putrescentiae showed high tolerance to SF as it survived concentration-time products in excess of the standard label limit 1500 g h/m3. SF studies also revealed that the eggs of T. putrescentiae were several fold more tolerant than that of the mobile stage, the nymphs and adults. SF trials under pilot-scale commercial conditions were also carried out that further supported the efficacy of SF for red-legged ham beetles but not for the ham mite. SF may not be suitable for managing ham mites based on work to date, but future work could investigate longer exposure times at higher temperatures.



中文翻译:

氟磺酰氟作为甲基溴的替代品,可用于熏蒸坏死的小节霉(Coleoptera:Cleridae)和腐烂的Tyrophag us ptrescentiae (Sarcoptiformes:Acaridae),这是基于动物的储藏产品的主要害虫

硫酰氟(SF)在许多国家/地区已注册用于存储产品,以替代其他熏蒸剂,尤其是甲基溴(MB)。进行了研究以建立SF熏蒸协议,以针对收获后的耐用商品侵害害虫的死亡率。研究了SF对南部干腌火腿的两种主要节肢动物害虫的功效,即红脚火腿甲虫Necrobia rufipes和火腿螨Tyrophagus putrescentiae。在23°C下处理48小时,SF会导致火腿甲虫的大量死亡,但不会导致火腿螨的死亡。红褐色猪笼草的卵比熏蒸其他阶段对SF的耐受性更高。此外,早熟(1-2天大N。rufipes的比晚龄(4-5天大)的鸡蛋更容易感染SF。此外,SF熏蒸可将幼虫,p和红褐猪笼草的成虫100%控制在8 g / m 3,而鸡蛋需要20.88-24.72 g / m 3才能防止100%孵化。但是,腐殖酸杆菌对SF表现出高耐受性,因为它在浓度-时间乘积中超过了标准标记限制1500 g h / m 3时仍然可以存活。SF研究还显示,腐烂锥虫的卵比流动阶段,若虫和成虫的卵耐受性高几倍。还进行了中试规模商业条件下的SF试验,进一步支持了SF的功效用于红脚火腿甲虫,而不用于火腿螨。SF可能不适合根据迄今为止的工作来管理螨虫,但未来的工作可能会调查在较高温度下较长的暴露时间。

更新日期:2021-01-25
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