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      • Open Access Article

        1 - Efficiency of anise Pimpinella anisum extract on biological activity of Tribolium castaneum and its antioxidant functional
        Shahla AMINI Parisa JONOBI Aref MAROF Ahmad MAJD
        The red flour beetles Tribolium castaneum is one of the most important pests of stored products, to control this pests plant extracts are suitable components as alternate for chemical pesticides. On the other hand herbs as natural resources that are antioxidant properti More
        The red flour beetles Tribolium castaneum is one of the most important pests of stored products, to control this pests plant extracts are suitable components as alternate for chemical pesticides. On the other hand herbs as natural resources that are antioxidant properties, The attention of researchers for use in the food and biological systems are located. In this research theefficiency of Pimpinella anisum extract on biological activity of anise Tribolium castaneum and its antioxidant functional is evaluated. In this study, the effect of seed extract of anisum on nutritional indices of adults T.castaneum, in 3 concentrations 50, 75 and 100 µl and respiratory toxicity effects of extracts ( 50, 89, 158, 281, 500 µl of extract per liter of air) was in vitro (29 ± 1°C and 65 ± 5% R.H.). Also the antioxidant effects of  P.anisum was investigated by two methods, radical scavenging, DPPH  (2, 2-diphenyl-1-picrylhydrazyl) method and reducing power of iron method. Nutrition a lindices showed that the highest and lowest concentration, respectively, has 86/94% and 68/82% inhibition of feeding. The highest mortality concentration was 500 µl/L of air at 24 hours. The required concentration to 50% mortality of population (LC50) at 24 hours after treatment was 215/19 µl/L of air. In DPPH test, the 50% inhibitory concentration of leaf extract was higher than seed extract, the same result was obtained from the power reducing of iron test. Manuscript profile
      • Open Access Article

        2 - سمیت تنفسی اسانس پوست پرتقال (.Citrus sinensis (L روی حشرات کامل شپشه برنج Sitophilus oryzae و شپشه آردTribolium castaneum
        M. Kabiri Raeis abad B. Amiri Besheli
        According to the high damage of stored pests and adverse effect of chemical pesticide research on the use of secondary metabolites and essential oil of plants are necessary for controlling stored product pest. In this research have been investigated the fumigant toxicit More
        According to the high damage of stored pests and adverse effect of chemical pesticide research on the use of secondary metabolites and essential oil of plants are necessary for controlling stored product pest. In this research have been investigated the fumigant toxicity and persistency of essential oil of orange peel Citrus sinensis (L.)on rice weevil Sitophilus oryzaeL. and flour beetle Tribolium castaneum Herbst. have been investigated The experiment was conducted in a completely randomized design. Essential oil of orange peel was extracted by Clevenger apparatus. The bioassay was done in 40 ml glass Jar at 25±2 ˚C and 65±5% R. H. under dark condition. Filter paper was used as the sources of evaporating facility . Based on data the LC50 values were 264.25 and 171.45µl/Lair on S. oryzae and T. castaneum at 48 h post- treatments respectively. The persistency of  the essential oil on flour beetle (25 days) was significantly more than on the rice weevil (21 days). The LT50 and LT90 were 12.56 and 8.68 days on rice weevil and 15.37 and 11.51 days on flour beetle, respectively. The results showed that the toxicity and persistency of essential oil of orange peel on these pests was acceptable and this oil can be further investigations might be an alternative to chemical pesticides on these product pests. Manuscript profile
      • Open Access Article

        3 - Integrated effects of diatomaceous earth and corn genotypes on mortality of red flour beetle Tribolium costaneum (Herbst) (Col., Tenebrionidae) in laboratory conditions
        M. Ghasemzadeh F. Shakhsi Zare A. Sabetghdam N. Baghaei
        The study was done during 2010-2011 to investigate the integrated effects of diatomaceous earth and three genotypes of corn on adults mortality of red flour beetle Tribolium costaneum in laboratory conditions (27°C, 60±5% RH and dark). The adults of red flour More
        The study was done during 2010-2011 to investigate the integrated effects of diatomaceous earth and three genotypes of corn on adults mortality of red flour beetle Tribolium costaneum in laboratory conditions (27°C, 60±5% RH and dark). The adults of red flour beetle fed with three concentrations of diatomaceous earth (0.5, 1 and 1.5 gr/kg) on three genotypes of corn in 4 replications. The mortality of T. castaneum was recorded after 2, 7 and 14 days and compared with control. Results showed that there was significant differences between genotypes and different concentration of diatomaceous earth. The comparison of means showed that 1 gr/kg concentration and KE1728/8 genotype of corn were the best treatment separately. Results of integrated effects showed that percentage of mortality had a significant difference only on 14th days. So 0.5 gr/kg concentration of diatomaceous earth and KE720/12    genotype are recommended as the best integration. Manuscript profile
      • Open Access Article

        4 - Insecticidal effect of juniperus Polycarpus for control of three stored product pests Tribolium castaneum، Callosobruchus maculatus، Ephestia kuehniella
        R. Payandeh H. Izadi M. R. Pirmoradi
        The cereals are one of the most important problems in the stored products that have been stored after harvest until consumption. The red flour beetle (Tribolium castaneum), The Mediterranean flour moth (Ephestia kuehniella) and the bean beetle (Callosobruchus maculat) a More
        The cereals are one of the most important problems in the stored products that have been stored after harvest until consumption. The red flour beetle (Tribolium castaneum), The Mediterranean flour moth (Ephestia kuehniella) and the bean beetle (Callosobruchus maculat) are the most important cosmopolitan stored pests. In this study, the effects of five juniper extract concentrations were performed on percent mortality of storage pests with three replications and under 25±2 C° and 65±5% RH condition. Contact toxicity was investigated by spraying the extracts on a Ptridish surface using Potter’s spray tower. Fifteen insects were released to each Ptridishe and mortality was counted after 24, 48 and 72 hours. The results of bioassays showed that with an increase in plant extract concentration, mortality increased significantly. The LC50 values after 24, 48 and 72 hours for the adults of the red flour beetle were calculated as 22662, 67056 and 73103 respectively. The LC50 values after 24, 48 and 72 hours for the bean beetle were estimated as 55231, 67629 and 71991 µl/L, respectively. The LC50 values after 24, 48 and 72 hours for the Mediterranean flour moth last instar larvae were obtained as 71842, 101289 and 145583 µl/L, respectively. Manuscript profile
      • Open Access Article

        5 - Repellent effect of Coconut soap (Palizin) against Tribolium castaneum (Herbst) and Lasioderma serricorne (F.) using three laboratory methods
        R. Sadeghi
        To alleviate insect pest problems in storage, synthetic pesticides are recommended, but their use may create toxicity to non-target organisms, development of resistance and residues in treated products. Under such circumstances the need for research to find a safe, conv More
        To alleviate insect pest problems in storage, synthetic pesticides are recommended, but their use may create toxicity to non-target organisms, development of resistance and residues in treated products. Under such circumstances the need for research to find a safe, convenient, durable and economically logical method is necessary. The application of repellents could be considered as a new control method in storage. In this study the repellency effect of Coconut soap (Palizin®) was assayed on Tribolium castaneum (Herbst) and Lasioderma serricorne (F.). Adults and larvae of T. castaneum and L. serricorne exposed to 0, 0.5, 1, 5 and 10% concentration of Coconut soap (Palizin®)  (botanical compound) using three techniques such as: filter papers, Y- shape Busvine tube and leaky glass bioassays. In each of three methods, the maximum repellency effect of Coconut soap (Palizin®)  was in concentration of 10%, and, the quantities were equal to 78.87, 74.27 and 56.93% for adults of T. castaneum and 72.70%, 85.86% and 45.60% for L. serricorne in Petri-dish, Y- shape Busvine tube and leaky glass techniques respectively. Manuscript profile
      • Open Access Article

        6 - Effects of heat treatments on mortality of different development stages of the red flour beetle, Tribolium castaneum Herbst. (Col., Tenebrionidae)
        R. Habibi-Karahrodi R. Vafaei-Shoushtari A. Marouf H. Farazmand S. Loni
        The red flour beetle, Tribolium castaneum Hbst., is an important pest of food processing facilities world wide. The use of elevated temperatures or heat treatments is a very effective method for managing of stored pests. In this study, the mortality of pest in 5 constan More
        The red flour beetle, Tribolium castaneum Hbst., is an important pest of food processing facilities world wide. The use of elevated temperatures or heat treatments is a very effective method for managing of stored pests. In this study, the mortality of pest in 5 constant temperatures, including 35, 45, 50, 55 and 60°C at times 5, 10, 15, 20 and 30 minutes on different growth stages (5-days larvae, 15-days larvae, pupae and adult of T. castaneum) were determined. Insects after heating, at temperatures of 28±1°C and relative humidity 65±5% were maintained. The results showed that, the most sensitive and resistant stages were 15-days larvae and pupal stages, respectively. It also revealed that the minimum temperature controller for 5-days larvae, 15-days larvae, pupal and adults stages were 55, 50, 55 and 50°C, respectively. Therefore, considering the possible all growth stages in an infected mass, 15°C temperature in 55 minutes, can be effective for control of all pest growth stages. Manuscript profile
      • Open Access Article

        7 - Repellency of camelthorn (Alhagi camelorum F.) and nettle (Urtica dioica L.) extracts against Tribolium castaneum (Coleoptera: Tenebrionidae)
        F. Shakhsi Zare S. Loni F. Moradi L. Azizpour
        The insert repellency of camelthorn (Alhagi camelirum F.) and nettle (Urtica dioica L.) extracts was investigated against red flour beetle (Tribolium castaneum) adults. The plants They were dried in room temperature and soaked in 98% ethanol, then concentrated by use of More
        The insert repellency of camelthorn (Alhagi camelirum F.) and nettle (Urtica dioica L.) extracts was investigated against red flour beetle (Tribolium castaneum) adults. The plants They were dried in room temperature and soaked in 98% ethanol, then concentrated by use of evaporation apparatus. Extract concentrations of 5, 10, 30 and 50% were prepared with pure acetone. Experiments were carried out according to filter paper method. Repellency percentage of each extract was recorded after one, three, five and ten hours of exposure at four replicates. The results showed that, repellency of both extracts increased significantly as concentrations rate and time of intervals increased. The highest repellency (76.6%) achieved 10h after exposure for camethorn and the least (3.33%) was obtained after one hour of treatment for nettle. Also, the repellency of camelthorn was more than nettle in all concentrations. According to results of this study, the camelthorn has a good potential to use as repellant for control of stored product pests. Manuscript profile
      • Open Access Article

        8 - Integrated effects of diatomaceous earth and Gamma ray on mortality of Red Flour beetle Tribolium castaneum (Col.: Tenebrionidae) in laboratory conditions
        F. Shakhsi Zare M. Ghasemzadeh A. Sabetghdam N. Baghaei
        The study were done during 2010-2011 to investigate the integrated effects of different doses of gamma radiation and diatomaceous earth (INSECTO®) on Red Flour Beetle Tribolium castaneum (Herbst) in laboratory conditions (27±1°C, 60±5% humidity, da More
        The study were done during 2010-2011 to investigate the integrated effects of different doses of gamma radiation and diatomaceous earth (INSECTO®) on Red Flour Beetle Tribolium castaneum (Herbst) in laboratory conditions (27±1°C, 60±5% humidity, dark room). In this study, adults of red flour beetle were grown on mashed corn (50 gram) and then treated with different doses of Gamma ray (100, 500 and 1000 Gray) and three doses of diatomaceous earth (0.5, 1 and 1.5 g kg-1). Percentage of mortality were recorded after 1, 2, 7, 14, 21, 28, 35 and 42 days and compared with control. Results showed significant differences among various doses of diatomaceous earth (DE) and Gamma ray and their interactions in most days after treatment. In comparing the means mortality in different doses of diatomaceous earth (DE) and various doses of Gamma ray, most mortality were recorded after 35 days in 1.5 gr/kg diatomaceous earth and 1000 Gray Gamma ray separately. In combination of Gamma ray and diatomaceous earth, most mortalities were recorded after 35 days for 1 and 1.5 g kg-1 (DE) combined with 500 and 1000 gray Gamma ray. It is concluded that 1 gkg-1 (DE) combined with 500 gray gamma ray is the best combination of the lreatmants. Manuscript profile