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    • List of Articles ایمیداکلوپراید

      • Open Access Article

        1 - Entomotoxic effect of nanoparticles of Zn-TiO2-Ag against oleander aphid, Aphis nerii
        Mohammad Rouhani Mohammad Amin Samih
        In recent years noble metal nanoparticles have been the subjects of focused researches due to their unique electronic, mechanical and chemical properties that are significantly different from those of bulk materials. Improvements in nanotechnology in the past decayed ha More
        In recent years noble metal nanoparticles have been the subjects of focused researches due to their unique electronic, mechanical and chemical properties that are significantly different from those of bulk materials. Improvements in nanotechnology in the past decayed has created various opportunities for evaluation of biologic effects such as insecticidal effects of nanoparticles. In this research, nanoparticles of 70%Zn-28%TiO2-2%Ag and 70%Zn-29%TiO2-1%Ag were synthesized through a solvothermal method and the insecticidal activity of Zn-TiO2-Ag nanoparticles and imidacloprid against the A.nerii was investigated. Results of Scanning Electron Microscopy (SEM) showed that these nanoparticles are approximately spherical with the diameter varying 48 and 49 nm, respectively. In this experiment, the LC50 value for 70%Zn-28%TiO2-2%Ag, 70%Zn-29%TiO2-1%Agand imidacloprid were calculated to be 476.74, 528.51 and 0.66, respectively. These results demonstrated that these nanoparticles have insecticidal effect on A. nerii. Additionally, the study showed that imidacloprid at 1 µl/ml and nanoparticles at 700 mg/ml had the highest insect mortality effect. Manuscript profile
      • Open Access Article

        2 - The effect of some methods for control of Bemisia tabaci (Hem.: Aleyrodidae) in tomato nursery
        Mohammad Taghi Fassihi Zinat Ahmadzadeh Narjeskhaton Kazerani
        Bemesia tabaci is an important pests in tomato fields. Effect of some control methods for these insect was evaluated in tomato nursery. This experiment was conducted in Borazjan, Bushehr Agricultural and Natural Resource Research Center. The treatments consisted of; yel More
        Bemesia tabaci is an important pests in tomato fields. Effect of some control methods for these insect was evaluated in tomato nursery. This experiment was conducted in Borazjan, Bushehr Agricultural and Natural Resource Research Center. The treatments consisted of; yellow sticky trap, aluminum mulch on soil, cloth net mulch on plots, oil (1%) and pesticide (Imidaclopride 0.8 ml/l) spray and control (without any control method). These treatments were laid in a RCBD (Randomized Block Design) with 3 replications. Number of whitefly nymphs on 15 leaflets was recorded. The treatments were compared with Duncan`s Multiple Range Test. The results indicated that cloth net mulch has the lowest number of whitefly nymph. All treatments were coefficient different with control.   Manuscript profile
      • Open Access Article

        3 - The effect of sublethal doses of Ethion and Imidacloprid on reproductive parameters of Cryptolaemus montrouzieri Mulsant (Col. ,Coccinellidae) in laboratory conditions
        M. Keshtkar Sh. Goldasteh Z. Rafiei Karahroodi S. Chavoshi
        The effect of sublethal doses of two pesticides, Ethion and Imidacloprid on reproductive parameters of Cryptolaemus montrouzieri Mulsant (Col., Coccinellidae) were investigated at constant laboratory condition. The insects were exposed to LC30 concentration of the pesti More
        The effect of sublethal doses of two pesticides, Ethion and Imidacloprid on reproductive parameters of Cryptolaemus montrouzieri Mulsant (Col., Coccinellidae) were investigated at constant laboratory condition. The insects were exposed to LC30 concentration of the pesticides during first 24 hours of their life. The amounts of LC30 and LC50 were respectively 244.58 and 385.13 for Ethion, and 130.83 and 221.45 ppm for Imidacloprid. The mean life span of adults in control was higher (41.2 days) than in treatments of Ethion (31.1 days) and Imidacloprid (26.7 days). The whole period of females' pre puberty in control and treatment with Ethion and Imidacloprid were record 30. 9, 33.9, 36.9 respectively. Sex ratio was calculated respectively 74.33, 54, and 46.67. Net fertility rate in control and treatment with Ethion and Imidacloprid were respectively record 449.48, 248.5, 182.45 eggs and net breeding rate were 394.6, 224.4, 166.7 eggs. The gross rates of hatching were calculated 0.87, 0.90 and 0.90 eggs. Mean egg per day in control and Ethion and Imidacloprid were 11.8, 9.6 and 9.5 eggs respectively. Intrinsic rate of natural increase (rm) in      control and treatments were 0.13, 0.10, 0.09 female/ female/ day respectively. These results       undicate that the sublethal doses of Ethion and Imidacloprid decrease the biological parameters of the coccineid. Manuscript profile
      • Open Access Article

        4 - Investigation on the effect of Abamectin in competition for nonselective insecticides on first instar larvae of cucumber leafminer Liriomyza sativae Blanchard (Dip., Agromyzidae)
        F. Saberfar A. Sheikhi-Gorjan
        Vegetables leafminers is one of the most important pests of greenhouse cucumber in Iran. In early years the population of this pest in greenhouse has been increased because of the irregular application of insecticides. This study was carried out to determine the toxicit More
        Vegetables leafminers is one of the most important pests of greenhouse cucumber in Iran. In early years the population of this pest in greenhouse has been increased because of the irregular application of insecticides. This study was carried out to determine the toxicity (LC50) of Abamectin, Deltametrin, Imidaclopriyd and Acetamiprid, the leaf dipping manner used for bioassay tests on first instars larvae, on the laboratory conditions was carried out at 25±1ºc, 65±5% R.H., and 16:8 photoperiod of L:D. Data was analyzed using probit analysis procedure and POLOPC softwares. The results (based on ppm active ingredient) for Abamectin, Deltametrin, Acetamiprid and Imidaclopriyd revealed that LC50 were 1.5, 200, 492 and 630 ppm respectively. According to results, the rate of toxicity for Abamectin, in larval stages was more toxic than other insecticides. Manuscript profile
      • Open Access Article

        5 - Comparing the insecticidal effect of eucalyptus and thyme essential oils on potato aphid (Macrosiphom euphorbiae)
        Aboutaleb Ghafari Lobat Taghavi Aref Marouf Parviz Moradi
        Introduction: Herbal essential oils are known as suitable alternative for controlling pests due to low toxicity, fast decomposition and environment- friendly. This study aimed to examine the insecticidal effect of two herbal essential oils, i.e. Eucalyptus globulus and More
        Introduction: Herbal essential oils are known as suitable alternative for controlling pests due to low toxicity, fast decomposition and environment- friendly. This study aimed to examine the insecticidal effect of two herbal essential oils, i.e. Eucalyptus globulus and Iranian thyme (Zataria multiflora), on potato aphid. In the current study Material and Methods: Herbal essential oils were extracted by distillation with water using a clevenger device. The biometric experiments were performed on adult insects in 6 concentrations of eucalyptus, including 2000, 6000, 10000, 20000, 16000, 20000 ppm and in 6 concentrations of thyme, including 4000, 8000, 10000, 15000, 20000, 24000 ppm. The amount of losses in each experiment was counted during 24 hours after the experiment initiation. Results:According to the results of the probit data analysis, the values of LC50 and LC90 ​​for eucalyptus essential oil were 4699 and 37106 ppm, respectively, and for thyme essential oil, these values ​​were 11944 and 45620, respectively. In the present research, the highest fatality rates (loss percentage) for eucalyptus essential oil at a concentration of 20000 ppm and for thyme essential oil at a concentration of 24000 ppm were to 88.71% and 79.54%, respectively. conclusion:As the LD50 of eucalyptus and thyme essential oils were lower than the dosages of chemical insecticides and considering the phenomenon of resistance due to chemical insecticide, it seems that the herbal essential oils such as eucalyptus and thyme can be appropriate alternatives for chemical insecticides in the pest control program in the future.   Manuscript profile
      • Open Access Article

        6 - Lethal Concentration (LC50 96h) of the Insecticide Confidor (Imidacloprid) on the Juveniles of the Grass Carp (Ctenopharyngodon idella)
        B. Moghaddasi B. Moghaddasi
        Grass carp (Ctenopharyngodon idella) in Iran, lives in the Caspian Sea basin and Hamoon Lake in Sistan-Baluchistan Province. Propagation and breeding of these fish are economically justified with the value of the fisheries. Today, this fish is used for avoiding severe g More
        Grass carp (Ctenopharyngodon idella) in Iran, lives in the Caspian Sea basin and Hamoon Lake in Sistan-Baluchistan Province. Propagation and breeding of these fish are economically justified with the value of the fisheries. Today, this fish is used for avoiding severe growing plants in water channels or natural ponds and their reproduction and breeding it has become commonplace. In this study, the lethal concentration (LC5096h) of the insecticide confidor (Imidacloprid) was estimated for the juveniles of the grass carp (C. idella). For 96 h, 150 young grass carps (3-4gr) in 5 groups (1 control and 4 replicates) were treated with the insecticide confidor (Imidacloprid) in concentrations 0, 125, 250, 500 and 1000 mg/l and the lethal concentration (LC5096h) and the maximum allowable concentration (M.A.C. value) were estimated. The lethal concentration (LC5096h) of the insecticide confidor was 300 mg/l and the maximum allowable concentration (M.A.C. value) was 30 mg/l. The toxicity of the insecticide confidor (Imidacloprid) was “virtually non-toxic” for the juveniles of the grass carp. Manuscript profile