LIBRO-CONGRESO-CITRUS

S13
(Mauri Pinnacle protein®) on attraction, feeding and mortality of the Queensland fruit fly, Bactrocera tryoni
(Froggatt). The effects of outdoor weathering of these mixtures on fly mortality were also determined.
In field-cage experiment, protein-starved flies showed the same level of attraction to baits containing
spinosad, fipronil, malathion, chlorpyrifos and protein alone used as control. Female protein-starved flies
were deterred from feeding on baits containing malathion and chlorpyrifos compared to baits containing
spinosad, fipronil and protein alone. Baits containing malathion and chlorpyrifos caused higher fly mortality
and rapid fly knock down than spinosad and fipronil. However, spinosad acted slowly and caused an increase
in fly mortality over time, causing up to 90% fly mortality after 72-hr. Baits containing malathion and
chlorpyrifos, applied on citrus leaves and weathered outdoors, had longer residual effectiveness in killing
flies than spinosad and fipronil. Residual effectiveness of the spinosad bait mixture waned significantly
after 3 days of outdoor weathering. Results suggest that spinosad and fipronil can be potential alternatives
for malathion in protein bait sprays.
S13P10
Effectiveness evaluation of two attractants, CeraTrap® and Tripack®, for the mass trapping of
Ceratitis capitata (Diptera: Tephritidae) in citrus orchards in different regions of Tunisia
Hafsi A., Rahmouni R., Ben Jannet M., Harbi A., and Chermiti B.
Institut Supérieur Agronomique de Chott-Meriem (ISA-CM), Département des Sciences Biologiques et de la Protection des Végétaux,
Tunisia. harbi.ahlem@hotmail.fr
Ceratitis capitata Wiedemann (Diptera: Tephritidae) is a key pest on citrus at worldwide range, being of
quarantine importance for export issues for countries on which this pest is present. In Tunisia C. capitata is of
economic importance due to importance of citrus sector. Damages of C. capitata in Tunisia may cause losses
of about 1.06 millions Dollars (US) per year on Citrus. By this factor, mass trapping is being evaluated for an
effective control of this pest in citrus. Nowaday, the area covered by mass trapping is of about 300 ha. The
trials were conducted during 2 years (2010, 2011) with two types of Mediterranean fruit fly mass trapping
systems CeraTrap® and Tripack® in Citrus orchards in three different geographical regions of Tunisia, under
different management systems: strictly organic (biotope of Chott-Meriem), semi organic (biotope of Takelssa)
and finally the conventional (biotope of Mornag). The obtained results showed that the mass trapping of
C. capitata used under: a) different management systems; b) trees densities, c) Citrus varieties (Maltaise,
Washington Navel) and d) with or without aerial treatments and localized applications (tasks treatments); is
able to protect fruits against the Mediterranean fruit fly. The CeraTrap® system showed a similar or even a
higher effectiveness than the Tripack® system in controlling the Med fly population and both mass trapping
systems were selective with the non-target fauna.
S13P11
Field releases of the larval parasitoid Diachasmimorpha longicaudata in Spain: first results on
dispersal pattern
Harbi A. 1 , Beitia F. 2 , Tur C. 3 , Chermiti B. 1 , Verdú M.J. 2 , and Sabater-Muñoz B. 2
1 Institut Supérieur Agronomique de Chott-Meriem (ISA-CM), Département des Sciences Biologiques et de la Protection des Végétaux,
Tunisia; 2 Instituto Valenciano de Investigaciones Agrarias (IVIA), Entomología, Centro de Protección Vegetal y Biotecnología (PVyB),
Spain; and 3 Transformaciones Agrarias SA (TRAGSA), Departamento de Plagas, Spain. harbi.ahlem@hotmail.fr
The Mediterranean fruit fly, Ceratitis capitata (Wiedemann), is a key pest on citrus and other fruit trees in
the Valencian Community (Spain). Currently it is being controlled by means of chemical applications, masstrapping
and by the Sterile Insect Technique. As more environmentally safe techniques are being demanded
by the European Union, a biological control program with parasitoids is also under study at the IVIA research
station in Valencia. The braconid Diachasmimorpha longicaudata (Ashmead) is a larval parasitoid of several
Tephritid species, which is being used as biological control agent in several countries (Argentina, Australia,
Guatemala, Hawaii (USA), Mexico). This species was imported to Spain from Mexico in 2009, and after its stay
in the quarantine station, it has been adapted to laboratory rearing using medfly as host. The objective of this
work is to understand parasitoid movement in the open field and its parasitism success under Mediterranean
228 - VALENCIA CONFERENCE CENTER, 18th-23rd NOVEMBER 2012