Population fluctuation of the olive fruit fly, Bactrocera oleae (Rossi) (Dip.: Tephritidae) in the Tarom Sofla region, Iran
Olive fruit fly, Bactrocera oleae (Rossi), is one of the most important and main pests that attack olives all around the world, especially in Mediterranean countries. This research was done to study some biological characteristics of the pest in two years. This pest has three to five generations in...
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| Format: | Article |
| Language: | English |
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Entomological Society of Iran
2023-02-01
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| Series: | نامه انجمن حشرهشناسی ایران |
| Subjects: | |
| Online Access: | https://jesi.areeo.ac.ir/article_128562_0606ee02df283e024048bdd9e23ddb5f.pdf |
| _version_ | 1797870937407750144 |
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| author | Ali Mohammadipour Gholam Hossein Gharekhani Hossein Ranjbar Aghdam Ali Akbar keyhanian |
| author_facet | Ali Mohammadipour Gholam Hossein Gharekhani Hossein Ranjbar Aghdam Ali Akbar keyhanian |
| author_sort | Ali Mohammadipour |
| collection | DOAJ |
| description | Olive fruit fly, Bactrocera oleae (Rossi), is one of the most important and main pests that attack olives all around the world, especially in Mediterranean countries. This research was done to study some biological characteristics of the pest in two years. This pest has three to five generations in the Tarom sofla area of Qazvin province. Results showed that fly overwinters as adult mainly but rarely as pupa beneath the plant debris and surface soil layer of the olive orchards. The olive fruit fly attacks the fruits as the weather warms up and after a period of reproductive diapause, in late spring and early summer, at the same time as the olive core hardens (Pit hardening). Climatic changes and olive tree phenology and access to olive fruit were constant and fully correlated with olive fruit fly activity. Based on these results, the first generation, because of the favorable conditions and the product of in the first year, happened generally in July, the second generation has continued between August and September, the third generation between September and October, the fourth generation in October and November, and the fifth generation or the wintering generation in November and December. But in the second year, due to the low yield and weather conditions, the first generation was generally observed in August, the second generation in September, the third generation between September and October, and the fourth generation (wintering generation) in October and November, and another fruit was not observed in December. Due to the long oviposition period, the olive fly has overlapping generations. The density of the olive fly population in the third and fourth generation is more than the first and second generation. In the early generations, the sex ratio is in favor of males, but in the last generation, it changes to 1:1. |
| first_indexed | 2024-04-10T00:35:14Z |
| format | Article |
| id | doaj.art-6863c33648d646bbbc67fb8e1523563a |
| institution | Directory Open Access Journal |
| issn | 0259-9996 2783-3968 |
| language | English |
| last_indexed | 2024-04-10T00:35:14Z |
| publishDate | 2023-02-01 |
| publisher | Entomological Society of Iran |
| record_format | Article |
| series | نامه انجمن حشرهشناسی ایران |
| spelling | doaj.art-6863c33648d646bbbc67fb8e1523563a2023-03-14T17:20:45ZengEntomological Society of Iranنامه انجمن حشرهشناسی ایران0259-99962783-39682023-02-0142433134410.52547/jesi.42.4.8128562Population fluctuation of the olive fruit fly, Bactrocera oleae (Rossi) (Dip.: Tephritidae) in the Tarom Sofla region, IranAli Mohammadipour0Gholam Hossein Gharekhani1Hossein Ranjbar Aghdam2Ali Akbar keyhanian31- Department of Plant Protection, Faculty of Agriculture, University of Maragheh, Maragheh, Iran 2- Agricultural Entomology Research Department, Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization (AREEO), Tehran, IranDepartment of Plant Protection Faculty of Agriculture, University of Maragheh, Maragheh, IranAgricultural Entomology Research Department, Iranian Research Institute of Plant Protection, Tehran, Iran2. Department of Agricultural Entomology Research, Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran.Olive fruit fly, Bactrocera oleae (Rossi), is one of the most important and main pests that attack olives all around the world, especially in Mediterranean countries. This research was done to study some biological characteristics of the pest in two years. This pest has three to five generations in the Tarom sofla area of Qazvin province. Results showed that fly overwinters as adult mainly but rarely as pupa beneath the plant debris and surface soil layer of the olive orchards. The olive fruit fly attacks the fruits as the weather warms up and after a period of reproductive diapause, in late spring and early summer, at the same time as the olive core hardens (Pit hardening). Climatic changes and olive tree phenology and access to olive fruit were constant and fully correlated with olive fruit fly activity. Based on these results, the first generation, because of the favorable conditions and the product of in the first year, happened generally in July, the second generation has continued between August and September, the third generation between September and October, the fourth generation in October and November, and the fifth generation or the wintering generation in November and December. But in the second year, due to the low yield and weather conditions, the first generation was generally observed in August, the second generation in September, the third generation between September and October, and the fourth generation (wintering generation) in October and November, and another fruit was not observed in December. Due to the long oviposition period, the olive fly has overlapping generations. The density of the olive fly population in the third and fourth generation is more than the first and second generation. In the early generations, the sex ratio is in favor of males, but in the last generation, it changes to 1:1.https://jesi.areeo.ac.ir/article_128562_0606ee02df283e024048bdd9e23ddb5f.pdfbactrocera oleaebiologypoplulation fluctuationsgeneration |
| spellingShingle | Ali Mohammadipour Gholam Hossein Gharekhani Hossein Ranjbar Aghdam Ali Akbar keyhanian Population fluctuation of the olive fruit fly, Bactrocera oleae (Rossi) (Dip.: Tephritidae) in the Tarom Sofla region, Iran نامه انجمن حشرهشناسی ایران bactrocera oleae biology poplulation fluctuations generation |
| title | Population fluctuation of the olive fruit fly, Bactrocera oleae (Rossi) (Dip.: Tephritidae) in the Tarom Sofla region, Iran |
| title_full | Population fluctuation of the olive fruit fly, Bactrocera oleae (Rossi) (Dip.: Tephritidae) in the Tarom Sofla region, Iran |
| title_fullStr | Population fluctuation of the olive fruit fly, Bactrocera oleae (Rossi) (Dip.: Tephritidae) in the Tarom Sofla region, Iran |
| title_full_unstemmed | Population fluctuation of the olive fruit fly, Bactrocera oleae (Rossi) (Dip.: Tephritidae) in the Tarom Sofla region, Iran |
| title_short | Population fluctuation of the olive fruit fly, Bactrocera oleae (Rossi) (Dip.: Tephritidae) in the Tarom Sofla region, Iran |
| title_sort | population fluctuation of the olive fruit fly bactrocera oleae rossi dip tephritidae in the tarom sofla region iran |
| topic | bactrocera oleae biology poplulation fluctuations generation |
| url | https://jesi.areeo.ac.ir/article_128562_0606ee02df283e024048bdd9e23ddb5f.pdf |
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