The influence of various cultivating technologies of maize on the occurrence of Ostrinia nubilalis, Hübner

Abstract

The aim of this study was to investigate the influence of cultivation, sowing, fertilisation techniques and chosen hybrids of maize upon infestation Ostrinia nubilalis. The experiment was performed in the maize monocultures in pilot plant test of Agrodružstvo Klas Křičeň (Pardubice district, Pardubice county) between 2001–2003. An increase in the number and the harmfulness of Ostrinia nubilalis were observed in the vegetation. This significant spread is the result of the monocultural way of growing the crop with the individual treatments being conducted on the same plots (damaged plant of year 2001 – 37 %, 2002 – 44 %, 2003 – 66 %). The time sowing method had a significant influence on the increased number of Ostrinia nubilalis (1st term of sowing 15,3 %, 2nd term of sowing 53,9 %). Only corn cobs were harvested and large amounts of postharvest remnants stayed on the field which acted as a reservoir for the next season. Neither various soil cultivation techniques, difference between the second sowing, soil protection technology, or traditional cultivation prove to be no significant (difference 7,0 %).

Keywords

• maize silage
• <i>Ostrinia nubilalis</i>
• soil protection technology
• traditional cultivation
• soil cultivation