Ovipositional preference of oriental fruit fly bactrocera dorsalis hendel (Diptera: Tephritidae) on Mango (Mangifera indica L. cv. Chokanan)
The oriental fruit fly, Bactrocera dorsalis Hendel, is one of the most problematic tephritid fruit flies and an agriculturally-important pest due to the severe damages caused in commercial fruits such as mango (Mangifera indica L.). The species is known to be able to develop eggs in different sta...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
2017
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| Subjects: | |
| Online Access: | http://eprints.unisza.edu.my/5406/1/FH02-FBIM-17-11120.pdf http://eprints.unisza.edu.my/5406/ |
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| Summary: | The oriental fruit fly, Bactrocera dorsalis Hendel, is one of the most problematic
tephritid fruit flies and an agriculturally-important pest due to the severe damages
caused in commercial fruits such as mango (Mangifera indica L.). The species is
known to be able to develop eggs in different stage of ripening fruits. Therefore, this
study is aimed to determine the ovipositional preference of B. dorsalis on different
ripening stages of Chokanan mango. Fertilized B. dorsalis female flies were exposed to
three different Chokanan mango ripening stages (i.e unripe, ripe and fully-ripe) for 24
hrs in no-choice and choice experiments. Results in the no-choice experiment showed
that was no significant difference (P>0.05) on the puparia recovery among the three
ripening stages. However, a high number of pupae were recovered from fully-ripe fruits
(27.60±8.87 pupae) followed by ripe (18.20±7.59 pupae) and unripe fruits (4.60±3.03
pupae). Various parameters such as adult emergence, the percentage of adult
emergence, and male and female emergence also showed no significant difference
(P>0.05) among the stages. In choice experiment, the results were recorded similar with
no-choice experiment in which there was no significant difference (P>0.05) of the
number of pupae among the three ripening stages but relatively more pupae were
recovered from fully-ripe fruits (35.8±28.5 pupae) compared to ripe (28.0±16.9 pupae)
and unripe fruits (13.2±5.54 pupae). The adult emergence, percentage of adult
emergence, and male and female emergence also showed no significant difference
(P>0.05) among the stages. In conclusion, this study shows that a fully-ripe Chokanan
fruit was relatively preferred by B. dorsalis females to oviposit eggs whilst unripe fruit
stage was the least preferred. This finding may enhance the management control
practices of B. dorsalis by the farmers. |
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