首页> 外文期刊>Journal of Stored Products Research >Toxicity of ethyl formate to adult Sitophilus oryzae (L.), Tribolium castaneum (herbst) and Rhyzopertha dominica (F.)
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Toxicity of ethyl formate to adult Sitophilus oryzae (L.), Tribolium castaneum (herbst) and Rhyzopertha dominica (F.)

机译:甲酸乙酯对米果Sitophilus oryzae(L.),cast藜Tribolium(Herbst)和Rhyzopertha dominica(F.)的毒性

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摘要

Fumigations were conducted using a continuous flow-through laboratory process to maintain constant concentrations of ethyl formate and low levels (<0.8%) of respiratory carbon dioxide. The procedure minimised the effects of sorption by exposing test insects without media and minimised the effect of carbon dioxide by use of continuous flow. The concentrationxtime (Ct) products of ethyl formate for adult Sitophilus oryzae, Tribolium castaneum and Rhyzopertha dominica at 25 pC and 70% relative humidity for the 6 h exposure were, respectively: (1) LD50 107.8, 108.8 and 72.8 mg h L-1 and (2) LD99.5 207.4, 167.1 and 122.2 mg h L-1. Endpoint mortality was reached within 24 h of initial exposure.
机译:使用连续流通的实验室工艺进行熏蒸,以保持甲酸乙酯的恒定浓度和低水平(<0.8%)的呼吸二氧化碳。该程序通过暴露无介质的试验昆虫而使吸附作用最小化,并通过使用连续流使二氧化碳的作用最小化。暴露6 h在25 pC和70%相对湿度下成人稻谷蝇Sitophilus oryzae,Tribolium castaneum和Rhyzopertha dominica的浓度xtime(Ct)乘积分别为:(1)LD50 107.8、108.8和72.8 mg h L-1 (2)LD99.5 207.4、167.1和122.2 mg h L-1。初次接触后24小时内达到终点死亡率。

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