Naslov
Monitoring of Western Corn Rootworm (Diabrotica virgifera virgifera LeConte) in Europe in the period 1997-2002

Autori
Igrc Barčić, Jasminka ; Dobrinčić, Renata ; Kiss, Jozsef ; Sivčev, Ivan ; Siviček, Peter ; Festić, Husnija ; Ivanova, Ivanka ; Edwards, Richard C. ; Princziger, Gabor ; Gogu, Florica

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Abstracts of the International Symposium "Ecology and Management of Western Corn Rootworm" / - , 2003, 10-10

Skup
International Symposium "Ecology and Management of Western Corn Rootworm"

Mjesto i datum
Göttingen, Njemačka, 19.01.2003. - 23.01.2003

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
monitoring; western corn rootworm; Europe

Sažetak
The western corn rootworm (WCR), Diabrotica virgifera virgifera LeConte, is the most important insect pest introduced into Europe in past 50 years. A Food and Agriculture Organization (FAO) of the United Nations Technical Cooperation Programme (TCP) activity was initiated in June 1997 in Bosnia and Herzegovina, Croatia, Hungary and Romania (FAO TCP 6712). After the programme was finished, monitoring of WCR and some other activities were continued and other infested countries (Bulgaria, Yugoslavia and Slovakia) were included. The activities continued within the frame of FAO WCR Network. The monitoring campaign identified two main tasks: 1) to determine the spread of WCR and prevalent ways of spreading ; and 2) to determine the population density in permanent monitoring sites ; Spread of WCR was established by placing Hungarian-produced pheromone traps and Multigard or Pherocon AM yellow sticky traps at various number of monitoring sites (depending on the year and country). On each site, one pheromone and one yellow sticky trap were placed at least 100 m apart. Traps were monitored from June-July through early October at intervals from weekly to monthly, depending on WCR numbers. Both traps were used to ensure the capture of both males and females. Permanent monitoring network was established on 30 monitoring sites in Bosnia and Herzegovina, 15 in Bulgaria, 10 in Croatia, 28 in Hungary, 66 in Romania and 3 in Slovakia. Each year of monitoring resulted with precise map of spreading and map of economic damages in European countries. Both maps are available on the web site http://www.gau.hu/nvtt/home.htm. With WCR the most part of Yugoslavia, whole Hungary, part of North Italy, Switzerland, a big part of Croatia and Romania, a part of Bosnia and Herzegovina, Bulgaria and Slovakia now is infested. In 2002 WCR was found in Austria, France and Czech Republic. Simultaneously with the spreading of WCR across Europe, economic damage on larger and larger acreages was registered each year. After the 2001 data, corn production in Yugoslavia dropped down because of damages in 2000. Economic damages were recorded in Hungary, Romania and Croatia also. In 2002, WCR is monitored on 60 monitoring sites in Bosnia and Herzegovina, 70 in Bulgaria, 145 in Croatia, 68 in Hungary, 272 in Romania, 37 in Slovakia and 100 in Yugoslavia. The results are still collecting and will be presented in the report. We were not able to establish the predominant direction of spreading. The direction of wind in Panonska valley is changeable and that caused the similar spread in all directions. It seems that the configuration of area has bigger impact on the spread of WCR than does the direction of the wind. Until now, WCR has passed over natural barriers (marshland and mountain regions) successfully. The population density of WCR for each year was higher than in previous year. The estimated population growth index for the years 1996-2001 in Croatia was between 1.7 and 3.6 times with an average of about 3 times. Similar situations were in other infested countries.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

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