Browsing Faculty of Natural and Agricultural Sciences by Author "Van den Berg, Johann"
Now showing items 21-30 of 30
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Performance of Trichogrammatoidea sp. nr lutea Girault (Hymenoptera: Trichogrammatidae) collected from Mussidia spp. in Kenya on eggs of six lepidopteran hosts
Muli, Benjamin Kimwele; Schulthess, F; Van den Berg, Johann (Wiley, 2010) -
Perspective on the development of stem borer resistance to Bt maize and refuge compliance at the Vaalharts irrigation scheme in South Africa
Van den Berga, J.; Van den Berg, Johann; Kruger, Marlien (ELSEVIER, 2009) -
Record of Eldana saccharina Walker (Lep, Pyralidae) in inland South Africa and its genetic relationship with the coastal population
Mitchell, A.; Le Ru, P.; Conlong, D.E.; Van den Berg, Johann; Assefa, Y (Blackwell, 2009) -
The relative abundance of maize stem borers and their parasitids at the Tshiombo irrigation scheme in Venda, South Africa
Van Hamburg, Huibrecht; Van den Berg, Johann; Krüger, W. (Forum Press International, 2008) -
Reproductive biology of Bt-resistant and susceptible field-collected larvae of the maize stem borer, Busseola fusca (Lepidoptera: Noctuidae)
Kruger, Marlene; Van Rensburg, J.B.J.; Van den Berg, Johann (Entomological Society of Southern Africa, 2012)The maize stem borer, Busseola fusca (Fuller) (Lepidoptera: Noctuidae), is of economic importance throughout sub-Saharan Africa. The seasonal activity pattern of this pest is characterized by two to three distinct generations ... -
Resistance to Bt Maize in Busseola fusca (Lepidoptera: Noctuidae) from Vaalharts, South Africa
Kruger, Marlene; Van den Berg, Johann; Van Rensburg, J.B.J. (Entomological Society of America, 2011)The first report of resistance of the maize stem borer [Busseola fusca (Fuller)] to Bt maize (MON810) was made in the Christiana area of South Africa during 2007. The objective of this study was to evaluate the status of ... -
Response of ground-dwelling arthropods to a 'push-pull' habitat management system: spiders as an indicator group
Van den Berg, Johann (Blackwell Publishing Limited, 2008) -
Sensilla on antennae, ovipositor and tarsi of the larval parasitoids, Cotesia sesamiae (Cameron 1906) and Cotesia flavipes Cameron 1891 (Hymenoptera: Braconidae): a comparative scanning electron microscopy study
Obonyo, Meshack Amos Owino; Schulthess, Fritz; Chimtawi, Mathayo; Mascarel, Gérard; Ahuya, Peter O.; Le Ru, Bruno; Van den Berg, Johann; Silvain, Jean-François; Calatayud, Paul-André (Société Entomologique de France, 2011)Two braconid parasitoids of cereal stemborers in eastern Africa, Cotesia sesamiae and Cotesia flavipes, have been shown to display a similar hierarchy of behavioural events during host recognition and acceptance. In order ... -
Systematics and molecular phylogeny of two African stem borer genera, Sciomesa...
Conlong, Desmond Edward; Cugala, D; Defabachew, B; Le Ru, Bruno; Matama-Kauma, T; Moyal, P; Pallangyo, B; Van den Berg, Johann (Cambridge University Press, 2010) -
Using morphological characteristics to distinguish between male and female larvae and pupae of the groundnut leafminer, Aproaerema modicella (Deventer) (Lepidoptera: Gelechiidae)
Van der Walt, Anna; Van den Berg, Johann; Du Plessis, H (Forum Press International, 2008)