On the reasons of european corn borer synthetic pheromone low activity in new northern centers of the insect harmfulness on maize
Keywords:Ostrinia nubilalis, pheromonitoring, modeling, adult behavior
Pheromone trap trials in the North of Voronezh Region have testified that their attractiveness to males of local populations belonging to Z-race of the European corn borer strongly depends on a distance to the place of adult eclosion, i.e. the field where maize grew last year. A hypothesis comes into question that sexual and reproductive behaviour of adults in new north and traditional south regions of the European corn borer damage to maize realize in accordance with alternative models, optimizing the usage of feed resources depending on their abundance for insects. As well, ideas have been put forward with respect to improving the monitoring and optimizing pest control measures in the northern focal points of the European corn borer harmfulness.