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Showing 1 to 20 of 25 for “"Ostrinia nubilalis"”.

  1. Sperm Passage in the Female European Corn Borer, Ostrinia nubilalis (Hubner)

    Stutzman, Richard W.1972

    Mated and unmated female European corn borers raised in the laboratory were sacrificed and arbitrarily placed into two groups. The abdomens from one group were dissected and observed in saline. The abdomens from the second group were fixed, embedded in paraffin, and sectioned on a microtome. …

    brockport Repository record

  2. Monitoring der Resistenzentwicklung des Maiszünsler (Ostrinia nubilalis), Hübner) gegenüber Bt-Mais

    Meise, Thomas2012

    … und zur Resistenzhäufigkeit der Maiszünsler (Ostrinia nubilalis, Hübner) in Deutschland zu erheben und die Methoden und Ergebnisse in Hinblick auf ein Resistenzmonitoring zu diskutieren. Die Basisempfindlichkeit (LC50) wurde mit verschiedenen Methoden und zum Teil für drei Jahre für …

    goettingen Repository record

  3. Phenology of the European corn borer, Ostrinia nubilalis (Hubner) (Lepidoptera: Pyralidae) in Virginia

    Despins, Joseph L.Virginia Polytechnic Institute and State University1982

    Flight activity of adult European corn borer field populations was monitored in Bedford County (1980 - 1981), Painter (1958 - 1980), Blacksburg (1971 - 1973, 1975) and Warsaw, Virginia (1971 - 1972, 1981). Peak occurrence of flight activity was accurately estimated by measuring the accumulation of …

    vt Repository record

  4. The Epizootiology of Nosema Pyrausta (Paillot) in The European Corn Borer, Ostrinia Nubilalis, in Central Illinois

    Siegel, Joel PhilipUniversity of Illinois at Urbana-Champaign2014

    … a chronic pathogen of the European corn borer, Ostrinia nubilalis (Hubner). A four year study was conducted in Woodford County, Illinois, from 1980 through 1983 in order to elaborate the relationship between corn borer density and the incidence of N. pyrausta. Factors contributing to the …

    uiuc Repository record

  5. Morphology of the Internal Reproductive System of the Male and Female European Corn Borer Ostrinia Nubilalis (Hubner)

    Shapiro, Miriam F.1973

    The gross morphology of the internal reproductive organs of the adult male and female European corn borer is described. The adults were laboratory reared progeny and descended from wild specimens collected in the Rochester area, Western N.Y. The male system displayed 2 major variations in the …

    brockport Repository record

  6. Optimizing Trichogramma ostriniae (Hymenoptera: Trichogrammatidae) releases to control European corn borer, Ostrinia nubilalis (Lepidoptera: Crambidae) in bell pepper

    Chapman, Anna VirginiaVirginia Tech2007

    … ability of the egg parasitoid Trichogramma ostriniae Pang and Chen was assessed in potato fields on the Eastern Shore of Virginia in spring 2005 and 2006. Approximately 0.5 million T. ostriniae were released from a central release point in separate potato fields. Dispersal was monitored …

    vt Repository record

  7. Gas Exchange and Yields of Bt Resistant Maize (Zea mays L.) with European Corn Borer (Ostrinia nubilalis, Hubner) Infestation

    Mallady, Shad

    eiu Repository record

  8. Maíz Bt : seguimiento de la resistencia de Sesamia nonagrioides (Lepidoptera: Noctuidae) y Ostrinia nubilalis (Lepidoptera: Crambidae) y efectos en artrópodos depredadores

    Poza Gómez, Marta de laAgronomos2004

    … de la resistencia de S. nonagrioides y O. nubilalis al maíz Bt var. Compa CB (derivada del evento 176, que expresa la toxina Cry1Ab) en zonas representativas del cultivo del maíz en España. Para dichas poblaciones se calculó la concentración de Cry1Ab que mata al 50% de la población (CL50) …

    upm Repository record

  9. The behavioral, ecological, and chemical association of Orius insidiosus (Say) with corn silks

    Reid, Craig DerekUniversity of Illinois at Urbana-Champaign2011

    … control agent against the European corn borer, Ostrinia nubilalis (Hubner) and corn earworm, Heliothis zea (Boddie) eggs.

    uiuc Repository record

  10. Fusarium stalk rot incidence in maize, Zea mays L., in relation to the European corn borer, Ostrinia nubilalis (Hubner) infestation, genotype maturity and eastern Ontario climatic gradient.

    Meloche, François.University of Ottawa (Canada)2009

    … germplasm resistant to the European corn borer, Ostrinia nubilalis (Hubner) and Fusarium fungal pests has been in progress for more than three decades as a worldwide cooperative effort. Some of the host plant resistance to the European corn borer and Fusarium has been attributed to the …

    ottawa-retro Repository record

  11. Evaluation of transgenic, Bt-containing corn hybrids

    Graeber, James VernonUniversity of Illinois at Urbana-Champaign2011

    European corn borer (ECB; Ostrinia nubilalis (Hubner)) is a major pest of corn (Zea mays L.) throughout the Corn Belt. Methods employed to control or manage this insect, such as polygenic plant resistance, introduced ECB predators, and chemical insecticides, have had some successes but economic …

    uiuc Repository record

  12. Use of the egg parasitoid, Trichogramma ostriniae (Hymenoptera: Trichogrammatidae) as a biological control agent of the European corn borer, Ostrinia nubilalis (Lepidoptera: Crambidae): An approach to integrated pest management in bell pepper

    Barlow, Vonny M.Virginia Tech2006

    … inundative releases of ~30,000 to 50,000 T. ostriniae per 0.02 ha significantly reduced damage by O. nubilalis in bell pepper. Egg parasitization averaged 48.7% in T. ostriniae release plots, which was significantly higher than non-release plots (1.9%). Also, cumulative green pepper fruit …

    vt Repository record

  13. Index, Individual Trait, and Tandem Selection to Improve a Maize Synthetic for Yield, Corn Borer, and Disease Traits

    Miller, Robert LynnUniversity of Illinois at Urbana-Champaign2014

    … generation European corn borer (CB) {caused by Ostrinia nubilalis (Hubner)}. These data were used to estimate genetic correlations between pairs of traits, to construct two selection indexes designed to improve the synthetic for yield and resistance to CB and common Illinois maize diseases …

    uiuc Repository record

  14. Arthropod damage in corn across site-specific management zones and differing water and nitrogen levels

    Davidson, Silas Andrew, author, Peairs, Frank, advisor, Hein, Gary, committee member, Khosla, Rajiv, committee member, Holtzer, Thomas, committee memberColorado State University. Libraries2005

    … pests of com were studied: European com borer (Ostrinia nubilalis [Hübner]), western com rootworm (Diabrotica virgifera virgifera [Leconte]), western bean cutworm (Richia albicosta [Smith]), and Banks grass mite (Oligonychus pratensis [Banks]). Infestations of each pest were created within each …

    colostate Repository record

  15. Investigation of Biotic and Abiotic Factors Affecting Double-Cropped Corn (Zea mays L.) Production in Virginia

    Sforza, Peter M.Virginia Tech2004

    … test weight, damage by European corn borer (Ostrinia nubilalis), damage by corn earworm (Heliothis zea), disease progress curves for gray leaf spot Cercospora zeae-maydis), and number of plants exhibiting virus symptoms. The Bt hybrid performed significantly better than the non-Bt hybrid for …

    vt Repository record

  16. European corn borer resistance in sorghum compared with maize

    Dharmalingam, Sinniah1983

    … by 1st-generation European corn borer (ECB), Ostrinia nubilalis Hubner, larvae under heavy infestation conditions (ca. 750 eggs/plant). All sorghum hybrids were resistant. Some sorghum hybrids were not as resistant, however, as a highly resistant inbred line of maize, Zea mays …

    iastate Repository record

  17. Ökologische und phytomedizinische Untersuchungen zum Anbau von Bt-Mais im Maiszünsler-Befallsgebiet Oderbruch

    Schorling, MarkusUniversität Potsdam

    … den letzten 20 Jahren hat sich der Maiszünsler (Ostrinia nubilalis HÜBNER), aus der Schmetterlingsfamilie der Pyralidae oder Zünsler, zum bedeutendsten tierischen Schädling des Maises (Zea mays) entwickelt. Eine Möglichkeit den Befall des Maiszünslers abzuwenden, bietet der Anbau von Bacillus …

    potsdam-diss Repository record

  18. Development of microbial control for lepidopteran pests of the corn ear

    Pingel, Randall1995

    … corn. The virulence of the entomopathogens for Ostrinia nubilalis (Hubner) and Spodoptera frugiperda (J. E. Smith) was also evaluated in the laboratory;Three Bt products (HD-1-S-1980, Javelin°ler, and XenTari°ler) and AfMNPV were tested in the laboratory. The relative virulence, from estimates …

    iastate Repository record

  19. The Effects of European corn borer on whole-plant yieldand root knot nematode fitness in corn

    Tiwari, SiddharthVirginia Tech2007

    … levels of third instar European corn borer, Ostrinia nubilalis Hübner (Lepidoptera: Crambidae), on whole-plant dry matter in corn grown for silage. Mean (± SEM) whole-plant dry matter was significantly greater by 18.8% in uninfested control plants than in plants with an infestation level of …

    vt Repository record

  20. Molecular marker-facilitated study of quantitative trait loci in a maize population

    Jarboe, Sue1993

    … to second generation European corn borer (Ostrinia nubilalis Hubner) (2ECB), morphological traits (plant height, ear height, anthesis and silk emergence) and yield component traits (grain yield/plot, ear number/plot, 300-kernel weight, number of kernel rows/ear, ear length, ear diameter, …

    iastate Repository record

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