The effect of carbon dioxide under pressure against eggs of Ephestia kuehniella Zeller and adults of Stegobium paniceum (L.) and Oryzaephilus surinamensis (L.)

P. S. Nielsen
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引用次数: 8

Abstract

The efficacy of an atmosphere with a high content of carbon dioxide under a pressure of 5 and 10 bar against young eggs of Ephestia kuehniella Zeller (Lep.: Pyralidae) and adults of Stegobium paniceum (L.) (Col.: Anobiidae) and Oryzaephilus surinamensis (L.) (Col.: Cucujidae) was investigated. At a pressure level of 10 bar, a 100 % mortality in eggs of E. kuehniella was obtained after 4 hours. Complete control was not obtained with the adult beetles, except for a 2 hour-treatment at 10 bar with individuals of S. paniceum, which not were offered protection. It is demonstrated that when working with an atmosphere of carbon dioxide under pressure of 10 bar for 2 hours, even a slight protection from food material will influence the mortality. The reason for these findings are discussed.

二氧化碳在压力下对麻黄素(Ephestia kuehniella Zeller)卵和虾虎鱼(Stegobium panicum(L.))和鱼糜鱼(Oryzaephilus surinamensis(L.)
研究了在5巴和10巴的压力下具有高二氧化碳含量的大气对Ephestia kuehniella Zeller(Lep.:Pyralidae)的幼卵以及对Stegobium panicum(L.)(Col.:Anobiidae)和鱼糜虫(Oryzaephilus surinamensis(L.))(Col.:Cucujidae)的成虫的效力。在10巴的压力水平下 % 在4小时后获得了E.kuehniella卵的死亡率。成年甲虫没有得到完全的控制,除了用没有得到保护的S.panicum个体在10巴下处理2小时之外。研究表明,当在10巴的压力下与二氧化碳气氛一起工作2小时时,即使对食物材料有轻微的保护也会影响死亡率。讨论了这些发现的原因。
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