Variations in carambola infestation rates byBactrocera carambolae drew and hancock (Diptera: Tephritidae) with fruit availability in a carambola orchard
The relationship between the infestation rate of carambola fruits by Bactrocera carambolae Drew and Hancock was investigated in a carambola orchard. Phenology of the fruits was found to influence percentage infestation of fruits by B. carambolae. The proportion of unbagged or susceptible fruits inf...
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| Format: | Article |
| Language: | English English |
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Springer-Verlag
1995
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| Online Access: | https://eprints.ums.edu.my/id/eprint/34062/1/Variations%20in%20carambola%20infestation%20rates%20by%20Bactrocera%20carambolae%20drew%20and%20hancock%20.ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/34062/2/Variations-in-carambola-infestation-rates-by-Bactrocera-carambolae-drew-and-hancock-Diptera-Tephritidae-with-fruit-availability-in-a-carambola-orchard.pdf |
| _version_ | 1825714988135743488 |
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| author | Tock, Hing Chua S.G Khoo |
| author_facet | Tock, Hing Chua S.G Khoo |
| author_sort | Tock, Hing Chua |
| collection | UMS |
| description | The relationship between the infestation rate of carambola fruits by Bactrocera carambolae Drew and Hancock was investigated in a carambola orchard. Phenology of the fruits was found to influence percentage infestation of fruits by B. carambolae. The proportion of unbagged or susceptible fruits infested varied with time of year and tended to decrease with the increase of unbagged fruits available on the tree. The number of ovipunctures per fruit varied with fruit size and was also found to be indicative of the number of adult insects (B. carambolae and parasitoids) that will emerge from each fruit. Higher number of susceptible fruits available on each tree also decreased both the number of ovipunctures per fruit and the number of eggs laid per fruit, which could possibly be due to the strategy of spreading the risk adopted by the female B. carambolae or a result of random selection with more hosts available. The main parasitoids recorded were Biosteres vandenboschi (Fullaway) and B. arisanus (Sonan). The mean percentage of parasitism was 38.3% and it followed roughly that of infestation of fruits. |
| first_indexed | 2024-03-06T03:19:57Z |
| format | Article |
| id | ums.eprints-34062 |
| institution | Universiti Malaysia Sabah |
| language | English English |
| last_indexed | 2024-03-06T03:19:57Z |
| publishDate | 1995 |
| publisher | Springer-Verlag |
| record_format | dspace |
| spelling | ums.eprints-340622022-08-30T02:44:40Z https://eprints.ums.edu.my/id/eprint/34062/ Variations in carambola infestation rates byBactrocera carambolae drew and hancock (Diptera: Tephritidae) with fruit availability in a carambola orchard Tock, Hing Chua S.G Khoo QK1-989 Botany The relationship between the infestation rate of carambola fruits by Bactrocera carambolae Drew and Hancock was investigated in a carambola orchard. Phenology of the fruits was found to influence percentage infestation of fruits by B. carambolae. The proportion of unbagged or susceptible fruits infested varied with time of year and tended to decrease with the increase of unbagged fruits available on the tree. The number of ovipunctures per fruit varied with fruit size and was also found to be indicative of the number of adult insects (B. carambolae and parasitoids) that will emerge from each fruit. Higher number of susceptible fruits available on each tree also decreased both the number of ovipunctures per fruit and the number of eggs laid per fruit, which could possibly be due to the strategy of spreading the risk adopted by the female B. carambolae or a result of random selection with more hosts available. The main parasitoids recorded were Biosteres vandenboschi (Fullaway) and B. arisanus (Sonan). The mean percentage of parasitism was 38.3% and it followed roughly that of infestation of fruits. Springer-Verlag 1995 Article PeerReviewed text en https://eprints.ums.edu.my/id/eprint/34062/1/Variations%20in%20carambola%20infestation%20rates%20by%20Bactrocera%20carambolae%20drew%20and%20hancock%20.ABSTRACT.pdf text en https://eprints.ums.edu.my/id/eprint/34062/2/Variations-in-carambola-infestation-rates-by-Bactrocera-carambolae-drew-and-hancock-Diptera-Tephritidae-with-fruit-availability-in-a-carambola-orchard.pdf Tock, Hing Chua and S.G Khoo (1995) Variations in carambola infestation rates byBactrocera carambolae drew and hancock (Diptera: Tephritidae) with fruit availability in a carambola orchard. Researches on population ecology, 37. pp. 151-157. ISSN 0034-5466 https://link.springer.com/article/10.1007/BF02515815 |
| spellingShingle | QK1-989 Botany Tock, Hing Chua S.G Khoo Variations in carambola infestation rates byBactrocera carambolae drew and hancock (Diptera: Tephritidae) with fruit availability in a carambola orchard |
| title | Variations in carambola infestation rates byBactrocera carambolae drew and hancock (Diptera: Tephritidae) with fruit availability in a carambola orchard |
| title_full | Variations in carambola infestation rates byBactrocera carambolae drew and hancock (Diptera: Tephritidae) with fruit availability in a carambola orchard |
| title_fullStr | Variations in carambola infestation rates byBactrocera carambolae drew and hancock (Diptera: Tephritidae) with fruit availability in a carambola orchard |
| title_full_unstemmed | Variations in carambola infestation rates byBactrocera carambolae drew and hancock (Diptera: Tephritidae) with fruit availability in a carambola orchard |
| title_short | Variations in carambola infestation rates byBactrocera carambolae drew and hancock (Diptera: Tephritidae) with fruit availability in a carambola orchard |
| title_sort | variations in carambola infestation rates bybactrocera carambolae drew and hancock diptera tephritidae with fruit availability in a carambola orchard |
| topic | QK1-989 Botany |
| url | https://eprints.ums.edu.my/id/eprint/34062/1/Variations%20in%20carambola%20infestation%20rates%20by%20Bactrocera%20carambolae%20drew%20and%20hancock%20.ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/34062/2/Variations-in-carambola-infestation-rates-by-Bactrocera-carambolae-drew-and-hancock-Diptera-Tephritidae-with-fruit-availability-in-a-carambola-orchard.pdf |
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