ISHS Acta Horticulturae 559: V International Symposium on Protected Cultivation in Mild Winter Climates: Current Trends for Suistainable Technologies
PRELIMINARY STUDY ON INSECTICIDE RESISTANCE IN FRANKLINIELLA OCCIDENTALIS (PERGANDE) (THYSANOPTERA: THRIPIDAE) IN SWEET PEPPER CROPS IN CAMPO DE CARTAGENA, S.E OF SPAIN |
| Authors: | J. Contreras, D. Moreno, M.D. Hernández, P. Bielza, A. Lacasa |
| Keywords: | thrips, bioassays, resistance level |
| DOI: | 10.17660/ActaHortic.2001.559.110 |
| Abstract:
The resistance to more frequently used insecticides shown by two populations of Frankliniella occidentalis is compared by means of bioassays: one of them taken from a plastic-house without treatment against thrips and the other one from a plastic-house with monitored treatment. The difference between populations and its variation throughout time are discussed. At mid-season, when both the populations were treated with deltamethrin and chlorpyrifos-methyl no differences were found, although the populations from the plastic-house with monitored treatment showed resistance to acrinathrin, methamidophos, endosulfan and formetanate. At end-season the result was an increase in sensitivity of this population for all the tested insecticides, and the only case of resistance was to endosulfan. | |
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