A ten-year study on the applicability of pheromone-baited traps for monitoring the European corn borer (Ostrinia nubilalis Hbn.) in the Federal Republic of Germany. Part 1. Distribution of pheromone strains and testing of different trap types, baits and trap sites
1992
Langenbruch, G.A. (Biologische Bundesanstalt fuer Land- und Forstwirtschaft, Darmstadt (Germany). Inst. fuer Biologischen Pflanzenschutz) | Lorenz, N.
Since 1981, the suitability of pheromone-baited traps for monitoring the European corn borer has been investigated in several regions of the Federal Republic of Germany (mainly in South Hesse, Rheinland-Pfalz, Baden-Wuerttemberg and Bavaria). In all regions with remarkable corn borer-damage, the Z-strain of the moth was of superior importance as compared to the E-strain and associated hybrids. At least in South Hesse, the 'Pherocon lC-trap' (Zoecon, USA) with an ECB-1 bait as well as the 'Biotrap' (Hoechst AG, FRG) with 20 mig or 60 mig of 97 Z- : 3 E-11-tetradecenyl acetate per dispenser proved to be useful. For reduction of catches of non-target insects in 'Biotrap' traps, a green or black painting of the white-coloured trap is recommended
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