LIBRO-CONGRESO-CITRUS

climatic conditions, including Tunisian conditions. In this work we show the results of our release assays
at different citrus areas and under different releases and parasitoid movement and parasitism assessment
systems. The use of artificially infested sentinel apples arose as the best method to establish the dispersal
pattern and parasitism assessment of released parasitoids. Application of host odour clues as pre-release
treatment is discussed.
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Magnet ® MED: A new long-life, ready-to-use “Attract and kill” system to control Mediterranean
fruit fly, Ceratitis capitata Wiedemann.
Colás C., Dominguez M., Marti S., and Alfaro C.
Suterra Europe Biocontrol SL (Suterra), Biocontrol, Spain. mdominguez@suterra.com
The goal of Magnet Med® is to control the pest bringing the insect to the poison instead to bring the
poison to the insect. Magnet Med® combines a good stable long-life deltamethrine formulation with a
long-life female attractant, Unipack®. Unipack® is female lure based on USDA patent and is being applied
in more than 20.000 ha for mass trapping in Spain citrus area, achieving very good results attracting ratio of
70/30 females/males. The effectiveness of Magnet Med® as “A&K” system to control C. capitata has been
demonstrated in many field trials conducted since 2006, in citrus as well as in stone fruits, pome fruits and
table grapes. In 2011 and 2012, laboratory tests demonstrate that the new deltamethrine formulation,
exposed under filed conditions, keep affecting the flies during at least 6 months. The attraction power
of Unipack® was also evaluated under field conditions, showing very high female attraction even after 6
months of being placed on the field. Those results prove the 6 months lasting of Magnet Med®. It allows
the grower not only to protect the crop but also to keep affecting the C. capitata population and achieving
a population decrease year after year.
This new effective period of the product give the possibility to change the strategy control achieving a longseason
Medfly control. Moreover, Magnet Med® is shown as ready-to-use product, environmental friendly,
residues free, very easy to be combined with other fruit fly management strategies and permitted in European
organic orchards (EU Directive 2092/91).
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Assessment of the efficacy of lure and kill devices for the control of Mediterranean fruit fly in
citrus orchards.
Navarro-Llopis V., Primo Millo J., Vacas S.
Instituto Agroforestal del Mediterráneo (CEQA), Universitat Politècncia de València, Spain. vinallo@ceqa.upv.es
Due to new restrictions in the use of insecticides by governments and the increasing social awareness in its
use, the development of new control methods has become essential to manage this pest. Bait sprays with
spinosad, mass trapping and lure and kill techniques have been the base for new integrated pest management
programs. In this work, three-years field trials were conducted in three citrus areas to test the efficacy of
attract and kill devices against mass trapping and spinosad or organophosphate plus bait treatments. In the
three trials, Magnet® MED attract and kill device, Spintor® treatments and mass trapping achieved good
control of C. capitata populations, as confirmed by low percentages of damaged fruit in the assessments
performed during the harvest period. On the contrary, fly population levels on plots untreated or treated with
a low efficacy attract and kill prototype device increased more than three times, regarding to the populations
recorded in the rest of treated plots. The same effect was observed on fruit damage, obtaining from six to
eight times less damage with Magnet® MED and spinosad treatments respectively, regarding the attract and
kill prototype devices. Untreated plots registered 20 fold fruit damage than treated plots. As a conclusion,
using an effective attractant, conventional trapping systems can be replaced with cheaper and easier to
handle attract and kill devices. The advantages of using lure and kill devices with respect to conventional
mass trapping systems are stressed.
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