Significance of the European corn borer (Ostrinia nubilalis Hübn.) in maize production

The European corn borer (Ostrinia nubilalis Hübn.), which is to be found almost universally in Europe and America, is an extremely important pest from the economic point of view. Losses caused by the pest range from 250-1000 kg/ha depending on the degree of infestation, the year and the yield averages. This fact justifies protection measures in Hungary on the whole of the seed production and sweetcorn fields and on 40% of the commercial maize sowing area. In addition to the direct damage, indirect losses are also considerable, since the injuries caused by the pest facilitate infection by Fusarium species. For the above reasons it is worth reviewing the habits of this pest, the extent of the economic loss resulting from the damage, and ways of controlling it.

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Research on the Relationship Between the Degree of European Corn Borer (Ostrinia Nubilalis Hbn.) Attack and Maize Fusariosis (Fusarium spp.) at ARDS Turda

Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca Agriculture ◽

10.15835/buasvmcn-agr:12659 ◽

2017 ◽

Vol 74 (1) ◽

pp. 57

Author(s):

Ana Maria VĂLEAN ◽

Felicia MUREŞANU ◽

Adina TĂRĂU ◽

Loredana SUCIU ◽

Laura SOPTEREAN ◽

...

Keyword(s):

Ostrinia Nubilalis ◽

European Corn Borer ◽

Climatic Conditions ◽

Point Of View ◽

Fusarium Spp ◽

Maize Production ◽

Corn Borer ◽

Economic Point ◽

Growing Period ◽

Important Pest

The European corn borer (Ostrinia nubilalis Hübn.), which is found almost universally in Europe and America, is an extremely important pest from economic point of view (Szőke et al., 2005). European corn borer larvae cause physical injuries to stalks and ears, and promote infections with Fusarium, by carrying the fungus spores from the plant surface to the surfaces of damaged kernels or to the interior of stalks, where infection occurs (Czembor, 2015). On account of the fact that between Ostrinia nubilalis Hbn. and Fusarium spp. there is a strong connection, and their presence lead to lower maize production, it’s purposed is reducing the corn borer attack, but also the occurrence of maize fusariosis, by applying treatments to the vegetation. The research was carried out at ARDS Turda, in the period 2014-2015 as a bifactorial experience, in which were performed two treatments on growing period, with insecticides, using the products: Avaunt 250 ml/ha (s.a. indoxacarb), Coragen 250 ml/ha (s.a. chlorantraniliprol), Proteus 400 ml/ha (s.a. tiacloprid + deltametrin), Calypso 150 ml/ha (s.a. tiacloprid) and Confidor 400 ml/ha (s.a. imidacloprid + deltametrin), and the biological material was used Turda 165 hybrid. Amid the climatic conditions in the two experimental years (2014-2015), regarding the frecquency attack of the Ostrinia nubilalis, 2015 proved to be a very favorable year for this pest, and by applying treatments to the vegetation, Ostrinia nubilalis Hbn. and Fusarium spp. attack has been reduced very significant. In order to combat the european corn borer (Ostrinia nubilalis Hbn.) chemically, are recommended products based on: chlorantraniliprol and tiacloprid+deltametrin.

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A study on percentages of damage ratios of the European corn borer (ECB), Ostrinia nubilalis (Hübner) (Lepidoptera: Pyralidae) on sweet corn cultivars

Entomology and Applied Science Letters ◽

10.24896/easl2017421 ◽

2017 ◽

Vol 4 (2) ◽

pp. 1

Author(s):

Nihat Demirel ◽

Ömer Konuşkan

Keyword(s):

Ostrinia Nubilalis ◽

European Corn Borer ◽

Sweet Corn ◽

First Year ◽

Corn Borer ◽

Important Pest ◽

Lepidoptera Pyralidae ◽

Second Year

The European corn borer (ECB), Ostrinia nubilalis (Hübner) (Lepidoptera: Pyralidae) is one of the most important pest of grain corn and sweet corn in Turkey. The objective of this study was to assess percentage damage ratios of the ECB on stalk and corncobs of various sweet corn varieties in Reyhanlı district of Hatay province of Turkey. The studies were carried out in 2015-2016 with four different sweet corn varieties including Caremelo, Vega, Merit and Batem. After two years of the study, the ECB larvae caused significant damages on stalk and corncobs of all sweet corn varieties. The percentage damage of stalk and corncobs varied for each of the sweet corn varieties in both years. In the first year, the highest percentages of stalk damage ratios were recorded on Batem (32.45), followed by Vega (19.85), Merit (17.07) and Caremelo (16.72). In the second year, the highest percentages of stalk damage ratios were observed on Merit (59.34), followed by Caremelo (51.65), Batem (45.09) and Vega (35.49). In the first year, the largest percentages of corncobs damage ratios were recorded on Vega (25.73), followed by Batem (16.74), Caremelo (12.11), and Merit (9.30). In the second year, the highest percentages of corncobs damage ratios were observed on Caremelo (14.31), followed by Merit (13.72), Batem (9.98) and Vega (8.93). In conclusion, the largest percentages of stalk + corncobs damages ratios were observed on Batem (49.19), followed by Vega (45.58), Caremelo (28.83) and Merit (26.37) in 2015, while the highest percentages of stalk + corncobs damages ratios were recorded on Merit (73.06), followed by Caremelo (65.96), Batem (55.07) and Vega (44.42) in 2016.

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Parasitoid inventarisation of European corn borer (Ostrinia nubilalis Hübner, 1796) and options for its biological control in Slovenia

Acta agriculturae Slovenica ◽

10.14720/aas.2016.107.1.10 ◽

2016 ◽

Vol 107 (1) ◽

pp. 93 ◽

Cited By ~ 1

Author(s):

Jaka RAZINGER ◽

Špela MODIC ◽

Annette HERZ ◽

Gregor UREK

Keyword(s):

Ostrinia Nubilalis ◽

European Corn Borer ◽

New Taxon ◽

Agricultural Pests ◽

Trichogramma Brassicae ◽

Maize Production ◽

Corn Borer ◽

Promising Alternative ◽

Hymenopteran Parasitoids ◽

Chemical Pesticides

European corn borer (Ostrinia nubilalis) (ECB) is an important maize pest in central and northern Europe. Presently it is controlled by insecticides or biological agents such as Trichogramma brassicae in several European countries, excluding Slovenia, where the pest’s pressure is highly variable and no appropriate mechanization is available. Lessening the dependence on chemical pesticides is an integral part of the European Union’s agenda for agriculture. Mass release of Trichogramma spp. could be seen as a promising alternative for ECB control in countries with a highly fluctuating ECB pressure and no mechanization for insecticide applications. However, no records of naturally occurring hymenopteran parasitoids of ECB exist in Slovenia. To address this important under-researched topic and provide the expert basis for potential introduction of ECB egg parasitoids in Slovene maize production, a systematic inventarisation programme of ECB parasitoids was launched in 2010. Additionally, ECB flight was monitored in 2011 and 2012 at two locations in Slovenia: Jablje and Rakičan. In both locations two ECB generations were observed. ECB was fist observed at the end of May in Rakičan. During the five years of the systematic survey we discovered two ECB parasitoid species. ECB egg masses were parasitized by Trichogramma brassicae, whereas ECB pupae were parasitized by Tycherus nigridens, with 6 or 7 % parasitation rate, respectively. T. nigridens represents a new taxon report for Slovenia. We conclude that there is a strong need for undertaking systematic surveys of natural enemies of agricultural pests.

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POPULATION DYNAMICS OF THE EUROPEAN CORN BORER, OSTRINIA NUBILALIS (HÜBNER)(LEPIDOPTERA: PYRALIDAE) ATTACKING POTATOES IN PRINCE EDWARD ISLAND

The Canadian Entomologist ◽

10.4039/ent127255-2 ◽

1995 ◽

Vol 127 (2) ◽

pp. 255-262 ◽

Cited By ~ 3

Author(s):

Andrew P. Dornan ◽

Jeff G. Stewart

Keyword(s):

Population Dynamics ◽

Ostrinia Nubilalis ◽

Prince Edward Island ◽

European Corn Borer ◽

Corn Borer ◽

Egg Masses ◽

Potato Plants ◽

Important Pest ◽

First Occurrence ◽

Lepidoptera Pyralidae

AbstractThe population dynamics of the European corn borer, Ostrinia nubilalis (Hübner) (Lepidoptera: Pyralidae), were documented on potatoes grown in Prince Edward Island (P.E.I.) from 1990 to 1992. By comparing degree-day accumulations above 10°C, both first occurrence and peak flights of male adults occurred earlier than elsewhere in North America. Because potatoes in P.E.I. are attacked earlier and over a longer period of time than potatoes grown in other regions, the insect is an important pest of potatoes in P.E.I. The correlation between peak numbers of male adults caught in pheromone traps and egg masses on potato plants was not significant (p = 0.22). However, the correlation between egg masses per potato stalk and larvae per potato stalk was significant (p = 0.003). Trapping adults and monitoring potato plants for the presence of egg masses during the period from 250 to 500 degree-days appears to be a reliable way to determine the presence of adults and the potential impact of larvae on yield of potatoes.

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