Nachrichtenblatt des Deutschen Pflanzenschutzdienstes (2006) 58, 1-5
Udo Heimbach, Andreas Müller and Thomas Thieme (2006)
First steps to analyse pyrethroid resistance of different oil seed rape pests in Germany
Nachrichtenblatt des Deutschen Pflanzenschutzdienstes 58 (1), 1-5
Abstract: Laboratory experiments were conducted testing the effects of active substances of pyrethroids on different pest insects of rape collected in different areas of Germany. As test method an adultvial-test was used. The pyrethroids (lambda-cyhalothrin and cypermethrin) were applied in glasstubes of 30 ml content and the insects were exposed to the dried residues of insecticides for up to 24 hours. Tests have been carried out on Meligethes aeneus, Phyllotreta spp., Ceutorhynchus assimilis, C. pallidactylus, C. napi, and Dasineura brassicae. Besides some M. aeneus samples showing drastic reduction in sensitivity to pyrethroids, out of 25 samples of other oil seed rape pest species only two samples, one each of C. napi and C. pallidactylus, showed a lower level of sensitivity to pyrethroids. The laboratory methods used showed good reproducibility and the field collection method of the different pest species resulted in sufficient number of test insects in many cases. Data obtained from the laboratory can not directly be used to predict possible resistance in the field but have to be validated with results from the field.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Thomas Thieme, Andreas Müller
Research topic(s) for pests/diseases/weeds:
pesticide resistance of pest
