Fumigant Toxicity of Two Nano-Capsulated Essential Oils with Sublethal Rate of Phosphine against Three Stored-Product Pests
محل انتشار: مجله علوم و فناوری کشاورزی، دوره: 21، شماره: 4
سال انتشار: 1398
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 88
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شناسه ملی سند علمی:
JR_JASTMO-21-4_007
تاریخ نمایه سازی: 23 آبان 1402
چکیده مقاله:
In this study, two essential oils including Cuminum cyminum (L.) and Lavandula angustifolia (Mill.) were nano-capsulated by solvent evaporation emulsion method and their fumigant toxicity was investigated against three important stored-products pest, Tribolium castaneum (Herbst), Sitophilus granarius (L.), and Oryzaephilus surinamensis (L.). Moreover, the sublethal concentrations of phosphine gas in combination with nano-capsules were evaluated to reduce their usage concentration. The synthetized nano-capsules were confirmed by Scanning Electron Microscope (SEM), Transmission Electron Microscopy (TEM) and Fourier Transform Infrared Spectroscopy (FTIR). The chemical compositions analysis of C. cyminum and L. angustifolia by GC-MS revealed that α-Pinene (۴۴.۶۳%) and Linalyl acetate (۶۱.۷۴%) were the major components of C. cyminum and L. angustifolia, respectively. The results showed that pure C. cyminum was more effective than L. angustifolia regarding the fumigant toxicity after ۲۴ h treatment on the three mentioned stored products pests. The LC۵۰ values of pure C. cyminum oil after ۲۴ h treatment were obtained as ۴۲.۵۱ and ۷۸.۹۹ μL L-۱ air by S. granarius and T. castaneum, respectively. However, the LC۵۰ values of C. cyminum oil nano-capsule form were ۲۲۰.۳۴ (S. granaries) and ۳۷۴.۱۶ μL L-۱ air (T. castaneum), which were determined as susceptible and resistant pests, respectively. The results indicated that the combination of nano-capsulated form of essential oil with reduced amounts of phosphine could be used as a suitable method for control of stored product pests.
کلیدواژه ها:
نویسندگان
N. Bayramzadeh
Department of Plant Protection, Faculty of Agriculture, Urmia University, Urmia, Islamic Republic of Iran.
F. Mehrkhou
Department of Plant Protection, Faculty of Agriculture, Urmia University, Urmia, Islamic Republic of Iran.
A. A. Pourmirza
Department of Plant Protection, Faculty of Agriculture, Urmia University, Urmia, Islamic Republic of Iran.
M. Mahmoudian
Department of Nano Technology, Faculty of Basic Science, Urmia University, Urmia, Islamic Republic of Iran.
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