Effects of Imunit Insecticide on Biological Characteristics and Life Table Parameters of <i>Spodoptera cilium</i> (Lepidoptera: Noctuidae)
Imunit is a mixture of alpha-cypermethrin + teflubenzuron, and has been launched for controlling caterpillars. In this study, the effects of Imunit at LC<sub>50</sub> and LC<sub>30</sub> were investigated on parental and offspring generation of <i>S. cilium</i>, a...
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| Format: | Article |
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MDPI AG
2021-12-01
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| Series: | Insects |
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| Online Access: | https://www.mdpi.com/2075-4450/12/12/1138 |
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| author | Marzieh Hatami Masumeh Ziaee Ali Asghar Seraj Mehdi Mehrabi-Koushki Jacek Francikowski |
| author_facet | Marzieh Hatami Masumeh Ziaee Ali Asghar Seraj Mehdi Mehrabi-Koushki Jacek Francikowski |
| author_sort | Marzieh Hatami |
| collection | DOAJ |
| description | Imunit is a mixture of alpha-cypermethrin + teflubenzuron, and has been launched for controlling caterpillars. In this study, the effects of Imunit at LC<sub>50</sub> and LC<sub>30</sub> were investigated on parental and offspring generation of <i>S. cilium</i>, according to age-stage, two-sex life table. The experiments were conducted by leaf dipping method at 25 °C and 60 ± 5% relative humidity, under a cycle of 16 h fluorescent light and 8 h darkness. LC<sub>30</sub> and LC<sub>50</sub> concentrations of Imunit increased the immature developmental time of <i>S. cilium</i> in the offspring generation, while the LC<sub>50</sub> of Imunit significantly reduced the developmental time of adults. The adult pre-oviposition period and total pre-oviposition period considerably increased when offspring were treated with LC<sub>50</sub> of Imunit. In offspring of <i>S. cilium</i> exposed to LC<sub>50</sub> and LC<sub>30</sub> concentrations of Imunit, the gross reproductive rate (<i>GRR</i>), net reproduction rate (<i>R</i><sub>0</sub>), the intrinsic rate of population increase (<i>r</i>), and the finite rate of population increase (<i>λ</i>) significantly reduced compared to the control. This study showed that the application of Imunit at LC<sub>50</sub> could suppress the <i>S. cilium</i> population and can be used in the integrated management program of this pest. |
| first_indexed | 2024-03-10T03:52:43Z |
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| issn | 2075-4450 |
| language | English |
| last_indexed | 2024-03-10T03:52:43Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Insects |
| spelling | doaj.art-6e8bc9da9cb440bfbe7eb145323d5ac82023-11-23T08:53:26ZengMDPI AGInsects2075-44502021-12-011212113810.3390/insects12121138Effects of Imunit Insecticide on Biological Characteristics and Life Table Parameters of <i>Spodoptera cilium</i> (Lepidoptera: Noctuidae)Marzieh Hatami0Masumeh Ziaee1Ali Asghar Seraj2Mehdi Mehrabi-Koushki3Jacek Francikowski4Department of Plant Protection, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz 61357-43311, IranDepartment of Plant Protection, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz 61357-43311, IranDepartment of Plant Protection, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz 61357-43311, IranDepartment of Plant Protection, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz 61357-43311, IranLaboratory of Insect Physiology and Ethology, Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, 9 Bankowa Street, 40-007 Katowice, PolandImunit is a mixture of alpha-cypermethrin + teflubenzuron, and has been launched for controlling caterpillars. In this study, the effects of Imunit at LC<sub>50</sub> and LC<sub>30</sub> were investigated on parental and offspring generation of <i>S. cilium</i>, according to age-stage, two-sex life table. The experiments were conducted by leaf dipping method at 25 °C and 60 ± 5% relative humidity, under a cycle of 16 h fluorescent light and 8 h darkness. LC<sub>30</sub> and LC<sub>50</sub> concentrations of Imunit increased the immature developmental time of <i>S. cilium</i> in the offspring generation, while the LC<sub>50</sub> of Imunit significantly reduced the developmental time of adults. The adult pre-oviposition period and total pre-oviposition period considerably increased when offspring were treated with LC<sub>50</sub> of Imunit. In offspring of <i>S. cilium</i> exposed to LC<sub>50</sub> and LC<sub>30</sub> concentrations of Imunit, the gross reproductive rate (<i>GRR</i>), net reproduction rate (<i>R</i><sub>0</sub>), the intrinsic rate of population increase (<i>r</i>), and the finite rate of population increase (<i>λ</i>) significantly reduced compared to the control. This study showed that the application of Imunit at LC<sub>50</sub> could suppress the <i>S. cilium</i> population and can be used in the integrated management program of this pest.https://www.mdpi.com/2075-4450/12/12/1138grassinsecticidelife table<i>Spodoptera cilium</i> |
| spellingShingle | Marzieh Hatami Masumeh Ziaee Ali Asghar Seraj Mehdi Mehrabi-Koushki Jacek Francikowski Effects of Imunit Insecticide on Biological Characteristics and Life Table Parameters of <i>Spodoptera cilium</i> (Lepidoptera: Noctuidae) Insects grass insecticide life table <i>Spodoptera cilium</i> |
| title | Effects of Imunit Insecticide on Biological Characteristics and Life Table Parameters of <i>Spodoptera cilium</i> (Lepidoptera: Noctuidae) |
| title_full | Effects of Imunit Insecticide on Biological Characteristics and Life Table Parameters of <i>Spodoptera cilium</i> (Lepidoptera: Noctuidae) |
| title_fullStr | Effects of Imunit Insecticide on Biological Characteristics and Life Table Parameters of <i>Spodoptera cilium</i> (Lepidoptera: Noctuidae) |
| title_full_unstemmed | Effects of Imunit Insecticide on Biological Characteristics and Life Table Parameters of <i>Spodoptera cilium</i> (Lepidoptera: Noctuidae) |
| title_short | Effects of Imunit Insecticide on Biological Characteristics and Life Table Parameters of <i>Spodoptera cilium</i> (Lepidoptera: Noctuidae) |
| title_sort | effects of imunit insecticide on biological characteristics and life table parameters of i spodoptera cilium i lepidoptera noctuidae |
| topic | grass insecticide life table <i>Spodoptera cilium</i> |
| url | https://www.mdpi.com/2075-4450/12/12/1138 |
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