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Survival and development of Bactrocera oleae Gmelin (Diptera:Tephritidae)
immature stages at four temperatures in the laboratory
Hanife Genç1* and James L. Nation2
1Department
of Plant Protection, Çanakkale Onsekiz Mart University,
Çanakkale, Turkey.
2Department
of Entomology and Nematology, University of Florida,
Gainesville, Florida, USA.
*Corresponding author. E-mail:
genchanife@hotmail.com.
Accepted 13 June, 2008 |
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Bactrocera oleae
Gmelin (Diptera:Tephritidae) is the most important and
widespread pest in the olive growing countries in the
Mediterranean basin. The development and survival of olive
fruit fly, B. oleae from egg to adult stage was
studied in the laboratory at 16, 22, 27
and 35°C. The objective of the study was to get
information on the influence of temperature on immature
stages as a prerequisite to optimize rearing procedures and
to understand geographical pattern of fruit fly occurrence.
Embryonic development was fastest at 35°C but there was no
pupal development and, of course, no adults at 35°C. The
slowest development of immature stages was at 16°C. The
highest percentage of adults obtained from an initial set of
100 eggs was 74% at 27°C. The lower development thresholds
for the egg, larval and pupal stages were 9.19, 13.94 and
12.36°C, respectively. The optimum temperature for
development and survival of immature stages was 27°C.
Key
words: Bactrocera oleae, olive fruit fly, rearing, temperature,
Tephritidae. |
