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Organism
(ORGA)
published: 20 Feb 2012
last updated: 13 Jun 2012
Bactrocera dorsalis
| Kingdom | Animalia |
| Phylum | Arthropoda |
| Class | Insecta |
| Order | Diptera |
| Family | Tephritidae |
| Genus | Bactrocera |
| Species | dorsalis |
- Dacus dorsalis
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Oriental fruit flyEN
Insects
Wild
Bactrocera dorsalis is endemic to Southeast Asia, but has also been introduced to Hawai'i, the Mariana Islands and Tahiti.
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Eggs of B. dorsalis are laid below the skin of the host fruit. These hatch within 1-3 days and the larvae feed for another 9-35 days. B. dorsalis will not develop at temperatures below 13°C. Pupariation is in the soil under the host plant and adults emerge after 1-2 weeks (longer in cool conditions) and adults occur throughout the year. B. dorsalis is a tropical species which would be unable to survive the winter in the EPPO region, except possibly in the south. The adults are best able to survive low temperatures, with a normal torpor threshold of 7°C, dropping as low as 2°C in winter.
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Attacked fruit will usually show signs of oviposition punctures. Fruit with a high sugar content, such as peaches, will exude a sugary liquid, which usually solidifies adjacent to the oviposition site.
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- Bactrocera dorsalis.pdf [ English ]
