Effects of different temperatures on the demography of pistachio green stink-bug, Brachynema germari Kolenati (Hemiptera:Pentatomidae), under laboratory conditions
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| Format: | Artículo científico |
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Sociedad Entomológica Argentina
2019
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| author | Amir YAZDANPANAH |
| author_facet | Amir YAZDANPANAH |
| contents | Effects of different temperatures on the demography of pistachio green stink-bug, Brachynema germari Kolenati (Hemiptera:Pentatomidae), under laboratory conditions Amir YAZDANPANAH Gadir NOURI-GANBALANI Jabraeil RAZMJOU Mehdi BASIRAT Seyed Ali-Asghar FATHI Biología Cultivar Life table Temperature The pistachio green stink-bug, Brachynema germari is one of the most important pests of pistachio in Iran that annually causes significant damages to this strategic crop. In this research, the effects of different temperatures on the demography of B. germari were investigated under laboratory conditions. The experiments were conducted at five constant temperatures 20, 25, 27.5, 30 and 35 (±1) °C, on Ohadi cultivar. The lowest and the highest mortality rates in both the eggs and nymph stages were observed at 25 °C and 35 °C, respectively. The longest and shortest immature development times were observed at 20 °C (53.75 days) and 35 °C (18.42 days), respectively. The population growth parameters were significantly affected by the experimental temperatures. The gross reproductive rate (GRR) was severely reduced at 35 °C and the net reproductive rate (R0 ) was also decreased by increasing temperature. The intrinsic rate of increase (rm ) was 0.05, 0.06, 0.06, 0.07 and 0.09 (day-1) at 20, 25, 27.5, 30 and 35 °C, respectively. Moreover, the lowest finite rate of increase (λ) (1.05 day-1) was observed at 20 °C, whereas the longest and shortest mean generation time (T) and doubling time (DT) occurred at 20 °C and 35 °C, respectively. Finally, the highest and lowest reproductive parameters values, including daily and total fecundity and fertility, were obtained at 20 °C and 35 °C. The results of this research could be useful in monitoring and efficient control of this pest. 2019 artículo científico 1851-7471 https://www.redalyc.org/articulo.oa?id=322060737005 https://www.redalyc.org/journal/3220/322060737005/ https://www.redalyc.org/journal/3220/322060737005/html/ https://www.redalyc.org/journal/3220/322060737005/322060737005.epub https://www.redalyc.org/journal/3220/322060737005/movil en http://www.redalyc.org/revista.oa?id=3220 Revista de la Sociedad Entomológica Argentina application/pdf Sociedad Entomológica Argentina Revista de la Sociedad Entomológica Argentina (Argentina) Num.4 Vol.78 |
| format | Artículo científico |
| id | redalyc_322060737005 |
| institution | Redalyc |
| language | en |
| publishDate | 2019 |
| publisher | Sociedad Entomológica Argentina |
| spellingShingle | Effects of different temperatures on the demography of pistachio green stink-bug, Brachynema germari Kolenati (Hemiptera:Pentatomidae), under laboratory conditions Amir YAZDANPANAH Biología Cultivar Life table Temperature Effects of different temperatures on the demography of pistachio green stink-bug, Brachynema germari Kolenati (Hemiptera:Pentatomidae), under laboratory conditions Amir YAZDANPANAH Gadir NOURI-GANBALANI Jabraeil RAZMJOU Mehdi BASIRAT Seyed Ali-Asghar FATHI Biología Cultivar Life table Temperature The pistachio green stink-bug, Brachynema germari is one of the most important pests of pistachio in Iran that annually causes significant damages to this strategic crop. In this research, the effects of different temperatures on the demography of B. germari were investigated under laboratory conditions. The experiments were conducted at five constant temperatures 20, 25, 27.5, 30 and 35 (±1) °C, on Ohadi cultivar. The lowest and the highest mortality rates in both the eggs and nymph stages were observed at 25 °C and 35 °C, respectively. The longest and shortest immature development times were observed at 20 °C (53.75 days) and 35 °C (18.42 days), respectively. The population growth parameters were significantly affected by the experimental temperatures. The gross reproductive rate (GRR) was severely reduced at 35 °C and the net reproductive rate (R0 ) was also decreased by increasing temperature. The intrinsic rate of increase (rm ) was 0.05, 0.06, 0.06, 0.07 and 0.09 (day-1) at 20, 25, 27.5, 30 and 35 °C, respectively. Moreover, the lowest finite rate of increase (λ) (1.05 day-1) was observed at 20 °C, whereas the longest and shortest mean generation time (T) and doubling time (DT) occurred at 20 °C and 35 °C, respectively. Finally, the highest and lowest reproductive parameters values, including daily and total fecundity and fertility, were obtained at 20 °C and 35 °C. The results of this research could be useful in monitoring and efficient control of this pest. 2019 artículo científico 1851-7471 https://www.redalyc.org/articulo.oa?id=322060737005 https://www.redalyc.org/journal/3220/322060737005/ https://www.redalyc.org/journal/3220/322060737005/html/ https://www.redalyc.org/journal/3220/322060737005/322060737005.epub https://www.redalyc.org/journal/3220/322060737005/movil en http://www.redalyc.org/revista.oa?id=3220 Revista de la Sociedad Entomológica Argentina application/pdf Sociedad Entomológica Argentina Revista de la Sociedad Entomológica Argentina (Argentina) Num.4 Vol.78 |
| title | Effects of different temperatures on the demography of pistachio green stink-bug, Brachynema germari Kolenati (Hemiptera:Pentatomidae), under laboratory conditions |
| topic | Biología Cultivar Life table Temperature |
| url | https://www.redalyc.org/articulo.oa?id=322060737005 https://www.redalyc.org/journal/3220/322060737005/ https://www.redalyc.org/journal/3220/322060737005/html/ https://www.redalyc.org/journal/3220/322060737005/322060737005.epub https://www.redalyc.org/journal/3220/322060737005/movil |