Verification of a European Corn Borer (Lepidoptera: Crambidae) Loss Equation in the Major Corn Production Region of the Northeastern United States

2005 ◽  
Vol 98 (1) ◽  
pp. 103-112 ◽  
Author(s):  
B. L. Dillehay ◽  
D. D. Calvin ◽  
G. W. Roth ◽  
J. A. Hyde ◽  
G. A. Kuldau ◽  
...  
Keyword(s):  
United States ◽  
European Corn Borer ◽  
Northeastern United States ◽  
Corn Production ◽  
Corn Borer ◽  
Production Region

Current European corn borer, Ostrinia nubilalis , injury levels in the northeastern United States and the value of Bt field corn

2014 ◽  
Vol 70 (11) ◽  
pp. 1711-1719 ◽  
Author(s):  
Eric W Bohnenblust ◽  
James A Breining ◽  
John A Shaffer ◽  
Shelby J Fleischer ◽  
Gregory W Roth ◽  
...  
Keyword(s):  
United States ◽  
Ostrinia Nubilalis ◽  
European Corn Borer ◽  
Northeastern United States ◽  
Corn Borer ◽  
Field Corn

DEVELOPMENTAL ADAPTATION OF THE EUROPEAN CORN BORER (OSTRINIA NUBILALIS HÜBNER) IN ALBERTA

1987 ◽  
Vol 119 (4) ◽  
pp. 371-380 ◽  
Author(s):  
Dennis A. Lee ◽  
John R. Spence
Keyword(s):  
United States ◽  
Ostrinia Nubilalis ◽  
European Corn Borer ◽  
The United States ◽  
Life Stages ◽  
Corn Borer ◽  
Corn Borers ◽  
Developmental Thresholds ◽  
Temperature Thresholds ◽  
Higher Temperature

AbstractTemperature effects on development were studied for two Alberta populations of Ostrinia nubilalis (Hübner), from the South Saskatchewan River valley and the surrounding plains. Lower developmental thresholds for all life stages of both Alberta populations were determined by linear regression. Thresholds for the egg stage were significantly less for plains borers (9.5°C) than for valley borers (10.8°C), and about 2°C lower than for corn borers from the United States. Thresholds in Alberta populations for the 4th (15.3°C) and 5th (14.0°C, plains) instars, and for post-diapause pupation (12.8°C), were much higher than in populations from the United States. Higher temperature thresholds delay development in Alberta populations, thus reducing midsummer pupation. Valley populations developed significantly faster than plains populations during egg development, during the prepupal period of the 5th instar, and during post-diapause pupation. These results explain why valley populations have a partial second generation in some years.

scholarly journals Projected climate and agronomic implications for corn production in the Northeastern United States

PLoS ONE ◽  
2018 ◽  
Vol 13 (6) ◽  
pp. e0198623 ◽  
Author(s):  
Rishi Prasad ◽  
Stephan Kpoti Gunn ◽  
Clarence Alan Rotz ◽  
Heather Karsten ◽  
Greg Roth ◽  
...  
Keyword(s):  
United States ◽  
Northeastern United States ◽  
Corn Production

DOSE–MORTALITY RESPONSE OF EUROPEAN CORN BORER (LEPIDOPTERA: PYRALIDAE) THIRD-INSTAR LARVAE TO SELECTED INSECTICIDES

1993 ◽  
Vol 125 (6) ◽  
pp. 1137-1139 ◽  
Author(s):  
William D. Hutchison
Keyword(s):  
United States ◽  
Ostrinia Nubilalis ◽  
European Corn Borer ◽  
Sweet Corn ◽  
Corn Borer ◽  
Mortality Response ◽  
Ca 50 ◽  
Lepidoptera Pyralidae ◽  
Economic Pest ◽  
Insecticide Control

The European corn borer, Ostrinia nubilalis Hübner, continues to be a consistent economic pest of field and sweet corn (Zea mays L.) in the upper midwestem United States. In Minnesota alone, O. nubilalis control costs and losses to sweet corn (ca. 50 630 ha) exceed $5,000,000 annually (Noetzel et al. 1985). Despite recent efforts to implement alternatives (Lewis and Bing 1991; Prokrym et al. 1992; Bartels and Hutchison 1993; Bolin et al. 1993), insecticide control continues to play a central role in O. nubilalis management programs.

THE BIOLOGY OF MELANICHNEUMON RUBICUNDUS (CRESS.) (HYMENOPTERA, ICHNEUMONIDAE)

1948 ◽  
Vol 80 (1-12) ◽  
pp. 118-137 ◽  
Author(s):  
George Wishart
Keyword(s):  
United States ◽  
European Corn Borer ◽  
Eastern United States ◽  
Corn Borer ◽  
Breeding Stock ◽  
Pyrausta Nubilalis

In a previous paper the writer slated that only two native parasites, Labrorychus prismaticus (Nort.) and Aplomya caesar (Aldrich), regularly attack the European corn borer, Pyrausta nubilalis (Hubn.) in Canada. Melanichneumon rubicundus (Cress.) is occasionally reared from the corn borer in the Eastern United States and a few adults were received with some adults of the European parasite Phaeogenes nigridens Wesm. A breeding stock was established with a view to possible future liberations in areas in Canada where it has not been recorded. It was found however, that while M. rubicundus will attack the corn borer in the laboratory it does so with such a degree of reluctance that it must be assumed that the attack in the field occurs only in the absence of more desirable hosts. In the laboratory this parasite attacks Loxostege sticticalis (L.) very readily and the data presented herewith are from material reared on Loxostege.

Design and Testing of a Boom Sprayer Prototype to Release Trichogramma ostriniae (Hymenoptera: Trichogrammatidae) in Sweet Corn for Biocontrol of Ostrinia nubilalis (Hübner) (Lepidoptera: Crambidae)

2018 ◽  
Vol 61 (6) ◽  
pp. 1867-1879
Author(s):  
Ariane Dionne ◽  
Mohamed Khelifi ◽  
Silvia Todorova ◽  
Guy Boivin
Keyword(s):  
Ostrinia Nubilalis ◽  
European Corn Borer ◽  
Large Scale ◽  
Sweet Corn ◽  
Negative Impact ◽  
Real Field ◽  
Corn Production ◽  
Corn Borer ◽  
Egg Masses ◽  
Parasitism Rates

Abstract. Sweet corn requires many insecticide applications to control its main pest: the European corn borer () (Lepidoptera: Crambidae). The use of is an effective biological alternative to control the European corn borer in sweet corn. However, manual introduction at large scale of using Trichocards is time-consuming. Mechanized introduction of using a boom sprayer is an innovative and advantageous solution. The objective of this study was to design and test a boom sprayer to spray (Hymenoptera: Trichogrammatidae) in sweet corn canopy under real field conditions. parasitized eggs were sprayed at a rate of 800,000 individuals ha-1 using a boom sprayer designed at the Department of Soils and Agri-Food Engineering of Université Laval, Québec, Canada. parasitized eggs were also introduced at a rate of 500,000 individuals ha-1 using Trichocards. Overall, eight releases were made during the 2016 season. Field trial results showed a 17.22% emergence rate reduction of in the sprayed plots compared to Trichocards. Total fecundity and longevity of sprayed females were not negatively affected by spraying; indicating that spraying did not have any negative impact on their quality. The parasitism rates observed on natural egg masses of and on sentinel egg masses of were comparable for both methods. At harvest, sprayed and Trichocards treatments resulted in adequate control of the European corn borer. Obtained results also showed that spraying was 1.7 times faster than the manual introduction of Trichocards. Overall, the results indicate that spraying is a promising technique for an efficient and viable introduction of parasitized eggs. However, more research is recommended to further optimize the spraying parameters. The spraying system successfully used in sweet corn could also be used in corn production and adapted to other crops such as pepper, beans, and potatoes to control the European corn borer. Keywords: Biological control, European corn borer, Ostrinia nubilalis, Trichogramma, Trichogramma ostriniae, Sweet corn, Corn production, Spraying, Boom sprayer, Beneficial insects, Trichocards.

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