Common Earwig
Zurich-Reckenholz, 15. In search of native natural enemies of the exotic spotted-wing drosophila, Agroscope experts have developed a method for detecting its genetic material in the stomachs of predators. The spotted-wing drosophila (SWD or Drosophila suzukii ) is an introduced vinegar fly species that causes serious damage in Swiss crops. Unlike native vinegar flies, it can attack undamaged, ripening fruit and berries by laying its eggs in them. The affected fruit rots quickly, thus becoming unmarketable. Tricky to control Controlling SWD is difficult, since it reproduces very quickly and its larvae are well protected inside the fruit. In addition to physical control methods such as covering the orchards with nets, natural antagonists of SWD could also play a role in its control in the future.
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