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  • Biology and control of Sclerotium rolfsii on groundnut in South Africa
    颁布单位：[University of the Free State] |  颁布时间：2001 |  实施时间：2001 |  学科分类：[["Sclerotium, rolfsii","Southern, stem, rot","Population","Mycelial, compatibility, groups","AFLP, analysis","Pathogenicity","Control","Inversion, plough","Integrated, pest, management","Peanuts, --, South, Africa, --, Diseases, and, pests","Thesis, (Ph.D., (Plant, Pathology))--University, of, the, Free, State,, 2001"]]
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  • Guild structure and seasonal distribution of insects associated with Amaranthus Hybridus under diverse cultivation practices in the Central Free State
    颁布单位：[University of the Free State] |  颁布时间：2000 |  实施时间：2000 |  学科分类：[["Amarantbus, hybridus","Monoculture","Mixed, cropping","Staggered, planting, dates","Arboreal, insects","Terrestrial, insects","Refugia","Border, areas","Diversity","Feeding, guilds","Amaranths, --, South, Africa, --, Free, State","Amaranths, --, Diseases, and, pests","Dissertation, (M.Sc., Zoology, and, Entomology))--University, of, the, Free, State,, 2000"]]
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  • Pathogenic variability in Puccinia Sorghi on maize in South Africa
    颁布单位：[University of the Free State] |  颁布时间：2000 |  实施时间：2000 |  学科分类：[["Corn, --, Diseases, and, pests, --, South, Africa","Corn, --, Disease, and, pest, resistance, --, Genetic, aspects","Dissertation, (M.Sc.Agric., (Plant, Breeding))--University, of, the, Free, State,, 2000"]]
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  • Aspects of the bio-ecology of the biting louse, Damalinia Limbata
    颁布单位：[University of the Free State] |  颁布时间：2000 |  实施时间：2000 |  学科分类：[["Ectoparasitic, infestations","Goat, lice, --, South, Africa, --, Fauresmith","Angora, goat, --, Diseases, and, pests","Phthiraptera","Dam, alinia, limbata","Lice","Angora, goats","Temperature","Instars","Mohair","Body, mass","Mohair, mass","Chemical, control","Dissertation, (M.Sc., (Zoology, and, Entomology))--University, of, the, Free, State,, 2000"]]
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  • Pathogenic variability and yield losses associated with rust diseases of barley and oats in South Africa
    颁布单位：[University of the Free State] |  颁布时间：1999 |  实施时间：1999 |  学科分类：[["Puccinia, hordei","Puccinia, coronata, f., sp., avenae","Puccinia, graminis, f., sp., avenae","Pathogenic, variability","Yield, loss","Barley","Oats","Oats, --, Diseases, and, pests, --, South, Africa","Barley, --, Diseases, and, pests, --, South, Africa","Rust, diseases, --, South, Africa","Dissertation, (M.Sc.Agric., (Plant, Pathology))--University, of, the, Free, State,, 1999"]]
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  • Fusarium dry rot of potatoes: etiology, epidemiology, toxicity and control
    颁布单位：[University of the Free State] |  颁布时间：1999 |  实施时间：1999 |  学科分类：[["Fusarium, --, South, Africa","Fungal, diseases, of, plants, --, South, Africa","Potato, --, Diseases, and, pests, --, South, Africa","Thesis, (Ph.D., (Plant, Pathology))--University, of, the, Free, State,, 1999"]]
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  • Oomycetes associated with citrus and eucalypts root rot in South Africa
    颁布单位：[University of the Free State] |  颁布时间：1999 |  实施时间：1999 |  学科分类：[["Eucalyptus, --, Diseases, and, pests, --, South, Africa","Citrus, --, Diseases, and, pests, --, South, Africa","Fungal, diseases, of, plants, --, South, Africa","Pythium","Phytophthora","Dissertation, (M.Sc., (Microbiology, and, Biochemistry))--University, of, the, Free, State,, 1999"]]
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  • The Amylostereum symbiont of Sirex noctilio in South Africa
    颁布单位：[University of the Free State] |  颁布时间：1998 |  实施时间：1998 |  学科分类：[["Insect-plant, relationships, --, South, Africa","Wood-decaying, fungi, --, South, Africa","Pine, --, Diseases, and, pests, --, South, Africa","Siricidae","Basidiomycetes","Dissertation, (M.Sc., (Microbiology, and, Biochemistry))--University, of, the, Free, State,, 1998"]]
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