Showing 1 - 20 results of 26 for search 'Johnnie Van den Berg', query time: 0.08s Refine Results
  1. 1
    Is Bt maize effective in improving South African smallholder agriculture?

    Is Bt maize effective in improving South African smallholder agriculture? by Klara Fischer, Johnnie van den Berg, Charles Mutengwa

    Published 2015-01-01
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  2. 2
    Susceptibility of <i>Tuta absoluta</i> (Lepidoptera: Gelechiidae) Pupae to Soil Applied Entomopathogenic Fungal Biopesticides

    Susceptibility of <i>Tuta absoluta</i> (Lepidoptera: Gelechiidae) Pupae to Soil Applied Entomopathogenic Fungal Biopesticides by Reynardt Erasmus, Johnnie van den Berg, Hannalene du Plessis

    Published 2021-06-01
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  3. 3
    Documenting Mantodea species in South African museum collections and an updated species list

    Documenting Mantodea species in South African museum collections and an updated species list by Bianca Greyvenstein, Johnnie van den Berg, Hannalene du Plessis

    Published 2023-12-01
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  4. 4
    Maize Yield Response to Chemical Control of <i>Spodoptera frugiperda</i> at Different Plant Growth Stages in South Africa

    Maize Yield Response to Chemical Control of <i>Spodoptera frugiperda</i> at Different Plant Growth Stages in South Africa by Johnnie van den Berg, Carmen Britz, Hannalene du Plessis

    Published 2021-08-01
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  5. 5
    The Effect of Wood Ash and Soil Applications on the Behavior and Survival of <i>Spodoptera frugiperda</i> (Lepidoptera: Noctuidae) Larvae on Maize

    The Effect of Wood Ash and Soil Applications on the Behavior and Survival of <i>Spodoptera frugiperda</i> (Lepidoptera: Noctuidae) Larvae on Maize by Nozibusiso Maphumulo, Hannalene du Plessis, Johnnie Van den Berg

    Published 2023-10-01
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  6. 6
    The Effect of Temperature on the Development of <em>Spodoptera frugiperda</em> (Lepidoptera: Noctuidae)

    The Effect of Temperature on the Development of <em>Spodoptera frugiperda</em> (Lepidoptera: Noctuidae) by Hannalene Du Plessis, Marie-Louise Schlemmer, Johnnie Van den Berg

    Published 2020-04-01
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  7. 7
    Distribution of Galepsus spp. in Southern Africa and Life History of <i>Galepsus lenticularis</i> (Mantodea: Tarachodidae)

    Distribution of Galepsus spp. in Southern Africa and Life History of <i>Galepsus lenticularis</i> (Mantodea: Tarachodidae) by Bianca Greyvenstein, Hannalene Du Plessis, Nicolas Moulin, Johnnie Van den Berg

    Published 2020-02-01
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  8. 8
    Plant Abandonment by <i>Busseola fusca</i> (Lepidoptera: Noctuidae) Larvae: Do Bt Toxins Have an Effect?

    Plant Abandonment by <i>Busseola fusca</i> (Lepidoptera: Noctuidae) Larvae: Do Bt Toxins Have an Effect? by Andri Visser, Hannalene Du Plessis, Annemie Erasmus, Johnnie Van den Berg

    Published 2020-01-01
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  9. 9
    Effects of Cry1Ab Transgenic Maize on Lifecycle and Biomarker Responses of the Earthworm, Eisenia Andrei

    Effects of Cry1Ab Transgenic Maize on Lifecycle and Biomarker Responses of the Earthworm, Eisenia Andrei by Mark Maboeta, Johnnie van den Berg, Frances van der Merwe, Carlos Bezuidenhout

    Published 2012-12-01
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  10. 10
    Dominant inheritance of field-evolved resistance to Bt corn in Busseolafusca.

    Dominant inheritance of field-evolved resistance to Bt corn in Busseolafusca. by Pascal Campagne, Marlene Kruger, Rémy Pasquet, Bruno Le Ru, Johnnie Van den Berg

    Published 2013-01-01
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  11. 11
    Ecology of the African Maize Stalk Borer, Busseola fusca (Lepidoptera: Noctuidae) with Special Reference to Insect-Plant Interactions

    Ecology of the African Maize Stalk Borer, Busseola fusca (Lepidoptera: Noctuidae) with Special Reference to Insect-Plant Interactions by Paul-André Calatayud, Bruno P. Le Ru, Johnnie van den Berg, Fritz Schulthess

    Published 2014-07-01
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  12. 12
    Host recognition and acceptance behaviour in Cotesia sesamiae and C. flavipes (Hymenoptera: Braconidae), parasitoids of gramineous stemborers in Africa

    Host recognition and acceptance behaviour in Cotesia sesamiae and C. flavipes (Hymenoptera: Braconidae), parasitoids of gramineous stemborers in Africa by Meshack OBONYO, Fritz SCHULTHESS, Bruno LE RU, Johnnie VAN DEN BERG, Paul-André CALATAYUD

    Published 2010-04-01
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  13. 13
    A bimodal pollination system enhances reproductive potential of translocated populations of an endangered grassland succulent

    A bimodal pollination system enhances reproductive potential of translocated populations of an endangered grassland succulent by Peter G. Jansen, Stefan J. Siebert, Frances Siebert, Johnnie van den Berg, Anine Jordaan

    Published 2019-08-01
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  14. 14
    Unexpected Diversity of <i>Wolbachia</i> Associated with <i>Bactrocera dorsalis</i> (Diptera: Tephritidae) in Africa

    Unexpected Diversity of <i>Wolbachia</i> Associated with <i>Bactrocera dorsalis</i> (Diptera: Tephritidae) in Africa by Joseph Gichuhi, Fathiya M. Khamis, Johnnie Van den Berg, Sunday Ekesi, Jeremy K. Herren

    Published 2019-05-01
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  15. 15
    Effects of endophyte colonization of Vicia faba (Fabaceae) plants on the life-history of leafminer parasitoids Phaedrotoma scabriventris (hymenoptera: braconidae) and Diglyphus isaea (hymenoptera: eulophidae).

    Effects of endophyte colonization of Vicia faba (Fabaceae) plants on the life-history of leafminer parasitoids Phaedrotoma scabriventris (hymenoptera: braconidae) and Diglyphus isa... by Komivi S Akutse, Komi K M Fiaboe, Johnnie Van den Berg, Sunday Ekesi, Nguya K Maniania

    Published 2014-01-01
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  16. 16
    Influence of inoculated gut bacteria on the development of Bactrocera dorsalis and on its susceptibility to the entomopathogenic fungus, Metarhizium anisopliae

    Influence of inoculated gut bacteria on the development of Bactrocera dorsalis and on its susceptibility to the entomopathogenic fungus, Metarhizium anisopliae by Joseph Gichuhi, Fathiya Khamis, Johnnie Van den Berg, Samira Mohamed, Sunday Ekesi, Jeremy K. Herren

    Published 2020-10-01
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  17. 17
    Detection of transgenes in local maize varieties of small-scale farmers in eastern cape, South Africa.

    Detection of transgenes in local maize varieties of small-scale farmers in eastern cape, South Africa. by Marianne Iversen, Idun M Grønsberg, Johnnie van den Berg, Klara Fischer, Denis Worlanyo Aheto, Thomas Bøhn

    Published 2014-01-01
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  18. 18
    Influence of Temperature on Intra- and Interspecific Resource Utilization within a Community of Lepidopteran Maize Stemborers.

    Influence of Temperature on Intra- and Interspecific Resource Utilization within a Community of Lepidopteran Maize Stemborers. by Eric Siaw Ntiri, Paul-Andre Calatayud, Johnnie Van Den Berg, Fritz Schulthess, Bruno Pierre Le Ru

    Published 2016-01-01
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  19. 19
    Effect of herbivore stress on transgene behaviour in maize crosses with different genetic backgrounds: cry1Ab transgene transcription, insecticidal protein expression and bioactivity against insect pests

    Effect of herbivore stress on transgene behaviour in maize crosses with different genetic backgrounds: cry1Ab transgene transcription, insecticidal protein expression and bioactivi... by André Felipe Lohn, Miluse Trtikova, Ignacio Chapela, Johnnie van den Berg, Hannalene du Plessis, Angelika Hilbeck

    Published 2023-11-01
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  20. 20
    Introgression of a cry1Ab transgene into open pollinated maize and its effect on Cry protein concentration and target pest survival.

    Introgression of a cry1Ab transgene into open pollinated maize and its effect on Cry protein concentration and target pest survival. by Reynardt Erasmus, Rialet Pieters, Hannalene Du Plessis, Angelika Hilbeck, Miluse Trtikova, Annemie Erasmus, Johnnie Van den Berg

    Published 2019-01-01
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