Comparative life table of Aphis craccivora (Hem.: Aphididae) on host plant, Robinia pseudoacacia under natural and laboratory conditions
-The cowpea aphid, Aphis craccivora Koch, is an important pest of Robinia pseudoacacia Frisia. Life table parameters of A. craccivora were determined under natural (16- 33ºC and 32-89% RH, respectively) and laboratory (25 ± 1ºC, RH of 70 ± 5% and a photoperiod of 16:8 h (L: D) conditions. The data w...
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| Format: | Article |
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Entomological Society of Iran
2017-02-01
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| Series: | نامه انجمن حشرهشناسی ایران |
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| Online Access: | https://jesi.areeo.ac.ir/article_109374_7b5775dc43f8eb73face771d2c3bf87d.pdf |
| _version_ | 1797973137002856448 |
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| author | A. Sahragard R. Jalalipour Kh. Madahi A. Karimi-Malati |
| author_facet | A. Sahragard R. Jalalipour Kh. Madahi A. Karimi-Malati |
| author_sort | A. Sahragard |
| collection | DOAJ |
| description | -The cowpea aphid, Aphis craccivora Koch, is an important pest of Robinia pseudoacacia Frisia. Life table parameters of A. craccivora were determined under natural (16- 33ºC and 32-89% RH, respectively) and laboratory (25 ± 1ºC, RH of 70 ± 5% and a photoperiod of 16:8 h (L: D) conditions. The data were analyzed using the age-stage, two-sex life table theory. Each experiment was replicated 45 times for each condition. There was significant differences between the survivorship, fecundity and longevity of the A. craccivora in laboratory and natural conditions. Under natural conditions, A. craccivora had a significant shorter nymphal developmental time, adult longevity and life span than those reared under laboratory conditions. However, the intrinsic rate of increase (r), net reproductive rate (R0), the finite rate of increase (λ) and gross reproductive rate (GRR) under laboratory conditions, were higher than those obtained in field, the higher mean generation time (T) was found in the field. All in all, the results of this study showed that two different conditions (field and laboratory) had significant influence on developmental times and life table parameters of A. craccivora and it is hard to escape the obvious conclusion that we must prevent the unsuitable extrapolation of laboratory results to field applications. The results obtained here, could also help us to understand the population dynamics of A. craccivora under field condition and to develop effective integrated pest management (IPM) programs. |
| first_indexed | 2024-04-11T03:59:16Z |
| format | Article |
| id | doaj.art-40ae24b2f0c14b6d827d0a41b101d098 |
| institution | Directory Open Access Journal |
| issn | 0259-9996 2783-3968 |
| language | English |
| last_indexed | 2024-04-11T03:59:16Z |
| publishDate | 2017-02-01 |
| publisher | Entomological Society of Iran |
| record_format | Article |
| series | نامه انجمن حشرهشناسی ایران |
| spelling | doaj.art-40ae24b2f0c14b6d827d0a41b101d0982023-01-01T23:48:19ZengEntomological Society of Iranنامه انجمن حشرهشناسی ایران0259-99962783-39682017-02-01364249257109374Comparative life table of Aphis craccivora (Hem.: Aphididae) on host plant, Robinia pseudoacacia under natural and laboratory conditionsA. Sahragard0R. Jalalipour1Kh. Madahi2A. Karimi-Malati3Department of Plant Protection, Faculty of Agricultural Sciences, Guilan University, Rasht, Iran.شغل آزادPhD studentAcademic staff-The cowpea aphid, Aphis craccivora Koch, is an important pest of Robinia pseudoacacia Frisia. Life table parameters of A. craccivora were determined under natural (16- 33ºC and 32-89% RH, respectively) and laboratory (25 ± 1ºC, RH of 70 ± 5% and a photoperiod of 16:8 h (L: D) conditions. The data were analyzed using the age-stage, two-sex life table theory. Each experiment was replicated 45 times for each condition. There was significant differences between the survivorship, fecundity and longevity of the A. craccivora in laboratory and natural conditions. Under natural conditions, A. craccivora had a significant shorter nymphal developmental time, adult longevity and life span than those reared under laboratory conditions. However, the intrinsic rate of increase (r), net reproductive rate (R0), the finite rate of increase (λ) and gross reproductive rate (GRR) under laboratory conditions, were higher than those obtained in field, the higher mean generation time (T) was found in the field. All in all, the results of this study showed that two different conditions (field and laboratory) had significant influence on developmental times and life table parameters of A. craccivora and it is hard to escape the obvious conclusion that we must prevent the unsuitable extrapolation of laboratory results to field applications. The results obtained here, could also help us to understand the population dynamics of A. craccivora under field condition and to develop effective integrated pest management (IPM) programs.https://jesi.areeo.ac.ir/article_109374_7b5775dc43f8eb73face771d2c3bf87d.pdfaphis craccivorageneration timeintrinsic rate of increaselife table parametersnatural condition |
| spellingShingle | A. Sahragard R. Jalalipour Kh. Madahi A. Karimi-Malati Comparative life table of Aphis craccivora (Hem.: Aphididae) on host plant, Robinia pseudoacacia under natural and laboratory conditions نامه انجمن حشرهشناسی ایران aphis craccivora generation time intrinsic rate of increase life table parameters natural condition |
| title | Comparative life table of Aphis craccivora (Hem.: Aphididae) on host plant, Robinia pseudoacacia under natural and laboratory conditions |
| title_full | Comparative life table of Aphis craccivora (Hem.: Aphididae) on host plant, Robinia pseudoacacia under natural and laboratory conditions |
| title_fullStr | Comparative life table of Aphis craccivora (Hem.: Aphididae) on host plant, Robinia pseudoacacia under natural and laboratory conditions |
| title_full_unstemmed | Comparative life table of Aphis craccivora (Hem.: Aphididae) on host plant, Robinia pseudoacacia under natural and laboratory conditions |
| title_short | Comparative life table of Aphis craccivora (Hem.: Aphididae) on host plant, Robinia pseudoacacia under natural and laboratory conditions |
| title_sort | comparative life table of aphis craccivora hem aphididae on host plant robinia pseudoacacia under natural and laboratory conditions |
| topic | aphis craccivora generation time intrinsic rate of increase life table parameters natural condition |
| url | https://jesi.areeo.ac.ir/article_109374_7b5775dc43f8eb73face771d2c3bf87d.pdf |
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