Naslov
Risk assessment for Western Corn Rootworm in infested areas in 2004

Autori
Bažok, Renata ; Igrc Barčić, Jasminka ; Kiss, Jozsef ; Komaromi, Judit ; Svičev, Ivan ; Cagan, Ludovit ; Karić, Nedžad ; Rosca, Ioan ; Ivanova, Ivanka

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

Izvornik
IWGO: 11th Diabrotica Subgroup Meeting, 10th EPPO ad hoc Panel and FAO Network Group Meeting / - , 2005

Skup
IWGO: 11th Diabrotica Subgroup Meeting, 10th EPPO ad hoc Panel and FAO Network Group Meeting

Mjesto i datum
Bratislava, Slovačka, 14.02.2005. - 17.02.2005

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
risk assessment; western corn rootworm

Sažetak
Under the framework of the FAO GTFS/RER/017/ITA project WCR risk assessment activities were conducted at four levels (country, regional, village and field level ones) in seven participating countries in 2004. The purpose of the activities was to: - develop field based methodology and indicators to asses WCR population level and potential risk to crop in current season and in the following year ; - make appropriate decisions in specific locations for further IPM development with farmers and - contribute to WCR risk assessment at larger scale. Country and regional levels were focusing to collect data on corn production area, ratio of continuous corn in different regions in all countries. WCR population density data were collected at permanent monitoring sites and were compared with previous year data in order to assess population changes. Based on this, the spread area, economic adult population area and the larval economic damage area were estimated. Economic adult population activity was registered on approximately 530.000 ha of corn fields in all seven infested countries. Economic larval damages were observed on approximately 51.800 ha of continuous corn. Regions with higher and lower risk were determined in some countries. Village and field level risk assessment activities were conducted through activities with farmers in 52 FFS groups in all seven countries. Field and village level risk assessment was based on two sampling methods: Pherocon AM trapping and visual counting on 182 farmers fields. As economic threshold level the daily catch of 6 beetles/Pherocon AM trap/day or 1 beetle per plant (visual checking) were considered. For village level risk assessment, farmer’ s data about corn production area and continuous corn area were collected also. On FFS meetings, farmers draw village map and marked the fields with high WCR adult population. They determined the fields and the areas which were at risk in the case if continuous corn will be planted. Farmers improved their ability to conduct their own risk assessment on their fields and showed high interest in this kind of activities. Risk assessment will be conducted in 2005 at region, village and field level. 2004 year WCR population density data will be correlated to 2005 year larval activity on continuous corn fields.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA