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Diabrotica in the Netherlands in 2005

Publication Date
Wed, 09 Aug 2006, 00:00
Last Updated
Aug. 8, 2006, 9:01 a.m.
Report Number
NLD-02/2
Country
Netherlands, Kingdom of the
Pest Id
Diabrotica virgifera virgifera - (DIABVI)
Report Status
Final
Hosts
Field crops of maize (Zea maïs).
Pest Status (old values from ISPM 8 -1998 )
  • Absent: pest eradicated
Pest Status (ISPM 8 - 2021)
  • Absent: pest eradicated
Geographical Distribution
In 2005, a total of five individuals of Diabrotica virgifera virgifera were captured on traps at four locations in the Netherlands. These locations were: Moorveld (near Maastricht airport), Badhoevedorp (near Schiphol airport), Woerden en Ter Aar. Areas h
Summary

In 2005, five individuals of Diabrotica virgifera virgifera were captured on traps at four locations in the Netherlands. These locations were: Moorveld (near Maastricht airport), Badhoevedorp (near Schiphol airport), Woerden en Ter Aar. At each location a focus zone of 1 km radius around the field, where the insect was captured, was demarcated and control measures were imposed. The control measures consisted of insecticide applications, crop rotation (1 : 3), hygienic measures for machinery and a prohibition on the movement of soil and fresh maize. Moreover, a safety zone of 5 km radius around the field of capture was demarcated. In this zone also a crop rotation was imposed (1 : 2). In both zones the monitoring with traps was intensified. In addition a buffer zone of 50 km radius around the field of capture was demarcated. In this zone monitoring was also intensified. Monitoring traps were replaced every 4 weeks and checked every 2 weeks. Following intensive monitoring no more beetles were captured at three locations (Moorveld, Badhoevedorp and Woerden) and one additional beetle was caught in the monitoring traps located around Ter Aar. This indicates that no populations were established at the four sites. The capture of five individuals is probably due to insects that were introduced by air and/or road traffic. The monitoring will be continued in these demarcated areas in 2006 and 2007.

Danger
Diabrotica virgifera virgifera is a quarantine organism for the EU. Both natural spread and spread by traffic (airplanes, cars, trucks, etc.) are important. In the demarcated areas measures for eradication and intensive monitoring have been implemented. Only at one location (Ter Aar) one additional beetle was caught. This indicates that no populations were established at the four sites. The monitoring will be continued in the demarcated areas until 2007.
Report files
Website
http://www9.minlnv.nl/servlet/page?_pageid=671&_dad=portal30&_schema=PORTAL30&p_item_id=128005

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