Abstract
In In this study, the effects of different irrigation treatments (I100, I50, I30) on the European corn borer (Ostrinia nubilalis hübner) populations in different corn genotypes (Ada-9510, Samada-07, Ada-523, Kompozit Arifiye) were investigated. As the average, the highest yield (1582.33 kg da-1), low number of live larva + pupa per plant (2.70), tunnel length (7.73 cm) were observed in I100 x ADA-523 interaction while the lowest yield (896.00 kg da-1) was observed in I30 x Kompozit Arifiye interaction. The largest European corn borer population was observed in full irrigation (I100) and the lowest population was observed in excessive water deficit (I30) treatment. The European corn borer preferred the Kompozit Arifiye genotype. It was concluded that the genotypes should be tested under water-stressed and non-water-stressed conditions for resistance to the European corn borer and live larva and tunnel length could be used as a screening parameter.
Highlights
In the world, there are several pests with negative impacts on corn culture in Turkey such as European corn borer (Ostrinia nubilalis hübner) and Mediterranean corn borer (Sesamia nonagrioides lefebvre) which are among all the most important ones
Irrigation treatments were initiated on 01 July 2015 when 50% of the available moisture in efficient root zone (0–90 cm) was depleted and the treatments were terminated on 11 September 2015
Harvest was performed on 30 September 2015 in the I30 and on 03 October 2015 in the I100 treatments (Table 4)
Summary
There are several pests with negative impacts on corn culture in Turkey such as European corn borer (Ostrinia nubilalis hübner) and Mediterranean corn borer (Sesamia nonagrioides lefebvre) which are among all the most important ones. In the Cukurova district of Turkey, the European corn borer reproduces 3 to 4 times and the Mediterranean corn borer reproduces 4 to 5 times a year [4]. It has been reported in previous studies that the Mediterranean corn borer represented 38.95% of the corn pests in Cukurova while the European corn borer constituted 61.15%. It was indicated that these ratios were 70% for Mediterranean corn borer and 30% for European corn borer based on infected number of plants and were 87% for Mediterranean corn borer and 13% for European corn borer based on live larva + pupa ratio per plant [5].
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