Naslov
The occurrence of oilseed rape (OSR) pests under different management systems

Autori
Gotlin Čuljak, Tanja ; Juran, Ivan ; Büchs, Wolfgang ; Sivčev, Ivan ; Grubišić, Dinka ; Prescher, Sabine ; Sivčev, Lazar

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

Skup
47th Croatian & 7th International Symposium on Agriculture

Mjesto i datum
Opatija, Hrvatska, 13.02.2012. - 17.02.2012

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
oilseed rape (OSR); pests; biodiversity

Sažetak
While Germany is one of the largest producers of oilseed rape (OSR) in Europe, in Croatia and Serbia OSR production is of an increasing importance. In a 2-years field experiment in each country the impact of three differently managed OSR fields (conventional, advanced integrated, organic) on pests and on the biodiversity of predators were investigated. The systems differed in tillage, fertilizer and pesticide input, weed control, row space and application of Brassica campestris as trap-crop. The fields were covered by a grid of sampling points using different methods to assess predators (pitfall traps, endogaeic pitfall traps, emergence traps) and pests (yellow water traps, bud/pod/stem samples). In autumn serious pest attacks were only recorded by Athalia rosae in Serbia in October 2010. Ceutorhynchus napi and C. pallidactylus, which usually immigrate into OSR-fields in Germany in spring, in Croatian and Serbian OSR-fields occurred already in November. In all countries trap crop strips (in integrated and organic) contributed to pull pests from the oilseed rape fields, but its effect is limited if the pressure of pest insects exceeds a certain level and if there is no option to conduct an insecticide application. The first results indicate that despite climatic differences in the 3 countries, the soil quality and conditions as well as the surroundings of OSR fields are the key factors to determine the level of pest attack.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

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