Fumigant toxicity of essential oil from Artemisia sieberi Besser against three stored-product insects

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• 作者：Maryam Negahban ; Saeid Moharramipour ; Fatemeh Sefidkon
• 关键词：Stored-product insects ; Artemisia sieberi ; Botanical insecticides ; Fumigant toxicity
• 刊名：Journal of Stored Products Research
• 出版年：2007
• 出版时间：2007
• 年：2007
• 卷：43
• 期：2
• 页码：123-128
• 全文大小：164 K

文摘

Artemisia sieberi is a widely distributed plant in Iran. Because some species of Artemisia are insecticidal, experiments were conducted to investigate fumigant toxicity of the essential oil. Dry ground leaves were subjected to hydrodistillation using a modified Clevenger-type apparatus and the resulting oil contained camphor (54.7 % ), camphene (11.7 % ), 1,8-cineol (9.9 % ), β-thujone (5.6 % ) and α- pinene (2.5 % ).

The mortality of 7 days old adults of Callosobruchus maculatus, Sitophilus oryzae, and Tribolium castaneum increased with concentration from 37 to 926 μL/L and with exposure time from 3 to 24 h. A concentration of 37 μL/L and an exposure time of 24 h was sufficient to obtain 100 % kill of the insects. Callosobruchus maculatus was significantly more susceptible than S. oryzae and T. castaneum; a second more detailed bioassay gave estimates for the LC₅₀ of C. maculatus as 1.45 μL/L, S. oryzae 3.86 μL/L and T. castaneum 16.76 μL/L. These results suggested that A. sieberi oil may have potential as a control agent against C. maculatus, S. oryzae and T. castaneum.