Naslov
Possibilities of reducing wireworms’ damages in maize field by trap crops

Autori
Kozina, Antonela ; Lemić, Darija ; Kos, Tomislav

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

Izvornik
Abstract volume / Trdan, Stanislav - Ljubljana : Plant Protection Society of Slovenia, 2015

ISBN
978-961-93447-2-9

Skup
12th Slovenian Conference on Plant Protection

Mjesto i datum
Ptuj, Slovenija, 03.03.2015. - 04.03.2015

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
maize; trap crops; wireworms

Sažetak
Maize is economically the most important field crop in Croatia. Wireworms (Coleoptera: Elateridae), along with the western corn rootworm (Diabrotica virgifera virgifera LeConte), are the most significant maize pests. By feeding on seeds and roots wireworms cause reduction of crop density and yield losses. Wireworms can be controlled only preventively, but decision should be based on the results of soil examination. Due to numerous restrictions the number of permitted insecticides is decreasing. Therefore, it is necessary to investigate the possibilities of controlling wireworms, including non-pesticide measures and the rational pesticides application. Results of European and Canadian researchers suggest that sowing the trap crops along the main crop reduce pest attack and increase the yield. The aim of two-year investigation in Virovitica (Croatia) was to determine differences in crop density and yield between the maize sown as main crop and maize sown along with trap crops, wheat (Triticum aestivum L.) and peas (Pisum sativum L.). The field experiment consisted of two parts: one plot was sown with maize and trap crops while the other was sown only with maize. In each plot, three insecticides and non-treated control were included. Crop densities and maize yield were determined, and collected data were statistically compared using analysis of variance. The significant differences were observed between the non-treated controls of both plots. In plot with trap crops the crop density was 13.1 % higher in 2013 and 7.4 % in 2014, while the yield was higher by 69.58 % in 2013 and 7.4 % in 2014. The main reason of significant differences between the investigated years could be extremely unfavorable weather conditions (rainy and cold spring, frequent floods) during 2014. Nevertheless, it can be concluded that trap crops positively affect the maize density and yield, which enhances the maize production in an environmentally friendly way.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA