Hybridization between Dactylopius tomentosus (Hemiptera: Dactylopiidae) biotypes and its effects on host specificity von Mathenge, C.W., Holford, P., Hoffmann, J.H., Zimmermann, H.G., Spooner-Hart, R.N., Beattie, G.A.C.

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Central serous chorioretinopathy is not a disease-specific feature in AQP4-IgG seropositive neuromyelitis optica spectrum disorders von Knaack, B., Rolfs, J., Zimmermann, H.G., Patel, V.R., Reeß, L., Bereuter, C., Schroeter, J., Siebert, N., Ruprecht, K., Bellmann-Strobl, J., Paul, F., Brandt, A.U., Oertel, F.C.

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Multi-agent modeling of multiple FX-markets by neural networks von Zimmermann, H.G., Neuneier, R., Grothmann, R.

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Biological control of cactus weeds of minor importance in South Africa von Moran, V.C., Zimmermann, H.G.

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Regulation and Risk Assessment for Importations and Releases of Biological Control Agents Against Invasive Alien Plants in South Africa von Klein, H., Hill, M.P., Zachariades, C., Zimmermann, H.G.

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Interpreting Ambiguous Results of Host-Specificity Tests in Biological Control of Weeds: Assessment of Two Leptinotarsa Species (Chrysomelidae) for the Control of Solanum elaeagnif... von Olckers, T., Zimmermann, H.G., Hoffmann, J.H.

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Host specificity of biotypes of Dactylopius opuntiae (Cockerell) (Hemiptera: Dactylopiidae): prospects for biological control of Opuntia stricta (Haworth) Haworth (Cactaceae) in Af... von Githure, C.W, Zimmermann, H.G. (Agricultural Research Council, Pretoria (South Africa). Plant Protection Research Inst.), Hoffmann, J.H

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Regulation and risk assessment for importations and releases of biological control agents against invasive alien plants in South Africa von Zachariades, C., Zachariades, C., Hill, M.P., Klein, H., Zimmermann, H.G.

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Distinguishing suitable biotypes of Dactylopius tomentosus (Hemiptera: Dactylopiidae) for biological control of Cylindropuntia fulgida var. fulgida (Caryophyllales: Cactaceae) in S... von Mathenge, C.W., Holford, P., Hoffmann, J.H., Zimmermann, H.G., Spooner-Hart, R., Beattie, G.A.C.

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Biological control of cactaceae in South Africa von Neser, S., Zimmermann, H.G., Paterson, I.D., Klein, H., Mathenge, C.W., Hoffmann, J.H.

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Development of Cactoblastis cactorum (Berg) (Lepidoptera: Pyralidae) on six North American Opuntia species von Mafokoane, L. D., Zimmermann, H. G., Hill, M. P.

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Biological control in the management of invasive alien plants in South Africa, and the role of the Working for Water programme : working for water von Zimmermann, H.G., Hoffmann, J.H., Moran, V.C.

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Biological control of mesquite, Prosopis spp. (Fabaceae), in South Africa von Zimmermann, H.G.

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Chainfruit cholla (Opuntia fulgida Engelm.) misidentified as rosea cactus (Opuntia rosea DC.) in South Africa von Henderson, L., Zimmermann, H. G.

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renonwned cactus moth, cactoblastis cactorum (Lepidoptera: Pyralidae): its natural history and threat to native Opuntia floras in Mexico and the United States of America von Zimmermann, H.G, Moran, V.C, Hoffmann, J.H

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Biological control of silverleaf nightshade, Solanum elaegnifolium, and bugweed, Solanum mauritianum, (Solanaceae) in South Africa von Olckers, T., Zimmermann, H.G.

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Biological control of prickly pear, Opuntia ficus-indica (Cactaceae), in South Africa von Zimmermann, H.G. (Plant Protection Research Inst., Pretoria (South Africa)), Moran, V.C

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Biological control of prickly pear, Opuntia ficusindica (Cactaceae), in South Africa von Zimmermann, H.G., Moran, V.C.

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Biological control of silverleaf nightshade, Solanum elaeagnifolium, and bugweed, Solanum mauritianum, (Solanaceae) in South Africa von Olckers, T, Zimmermann, H.G

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The prickly pear (Opuntia ficus-indica [Cactaceae]) in South Africa: Utilization of the naturalized weed, and of the cultivated plants von Brutsch, M.O. (University of Fort Hare, Alice, South Africa), Zimmermann, H.G

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