H.K. BERGER
Federal Office and Research Centre for
Agriculture; Main Staff Division for Research Integration; A – 1226
Wien, Spargelfeldstraße 191; Austria
Monitoring of Diabrotica virgifera virgifera was carried out by the Federal Office and Research Centre for Agriculture, Main Division Research Integration in Vienna together with co-operators of the relevant Plant Protection Departments in the Chambers of Agriculture of Lower Austria, Upper Austria, Tyrol, Carinthia, Burgenland and Styria and the Pioneer Seed company. In all cases pheromone traps were used.
Out of a total area of 1.382.000 ha of field crops the share of corn is approximately 19 % of is 2/3 grain corn. On most of this area maize is rotated with other crops so the amount of maize monoculture is rather low.
The observations started between June 20th and July 6th. The traps, pheromones and sticky surfaces were changed three times during the whole observation time. The final checks were made between August 28 and September 13, 2001. Other checks were made continuously between these days.
Diabrotica virgifera virgifera was not caught in any trap throughout 2000. Therefore, we can say with large likelihood that Diabrotica virgifera virgifera is not present in territory of Austria in the surveyed Federal countries (Lower Austria, Upper Austria, Burgenland, Styria, Carinthia, Tyrol).