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An evaluation of the insecticidal properties of two viruses naturally associated with the bollworm, Heliothis armigera (HUBN) (Lepidoptera, Noctuidae) in South Africa
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Viruses of Heliothis armigera (Hübner) (Lepidoptera : Noctuidae)
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Cotton cultivation practices with special reference to the effect of Bt-cotton on Arthropoda populations
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n Bydrae tot die kennis van die biologie en ekologie van Euxoa Subalba (WLK.) (Lepidoptera: Agrotidae) in die Kaapse-vlakte gebied
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A contribution to the bionomics and control of the mite Bryobia praetiosa Koch, (Fam. Tetranychidae)
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Studies on the bionomics and control of the pear bud mite Eriophyes piri, Pag.
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The bionomics and control of the silver mite Hemitarsonemus latus (Banks)(Acarina : Tarsonemidae) on lemons
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Three cocluded insect viruses : a biophysical and biological study of the nuclear-polyhedrosis virus of Colias electo, the granulosis virus of Heliothis armigera and the nuclear-polyhedrosis virus of Heliothis zea
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The grain sorghum stem borer Chilo Partellus (Swinhoe) (Lepidoptera: Pyralidae) as pest on maize
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Bionomics, behaviour and monitoring of the vine snoutbeetle, Phlyctinus callosus Boh., in deciduous fruit orchards, with proposals for an improved control strategy
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Bionomics, behaviour and control of the codling moth, Cydia pomonella (L.) (Lepidoptera: Tortricidae), in pome fruit orchards in South Africa
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An investigation on graft-transmissible diseases of some fruit in South Africa
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Studies on the biology and management of Scarabaeidae in horticultural crops
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n Fisiologiese ondersoek van die swarthart-verskynsel by die cayenne-pynappelvrug, Ananas comosus L. Merr.
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Studies on yield losses caused by the stem borers Chilo partellus (Swinhoe) (Lepidoptera: Pyralidae) and Busseola fusca (Fuller) (Lepidoptera: Noctuidae) in grain sorghum
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Further studies on leaf blackening of proteas
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Toksienproduksie deur Eutypa Armeniacae en die rol daarvan by appelkoosterugsterwing
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n Oorsig oor die koringsiektesituasie in Suid-Afrika, met spesiale verwysing na stamroes, en oorwegings in verband met 'n nasionale koringsiekteprogram
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Simptomatologie, morfologie en anatomie van vlek (marbrure) by wingerd met spesifieke verwysing na Richter 99 (Vitis Berlandieri P. X Vitis Rupestris S.)
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Studies on the scab disease of apples caused by Venturia inaequalis (Cke.) Wint. with particular reference to its epiphytology and control in the winter rainfall area of the Cape Province
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Evaluation of the effect of microclimate differences on activity of codling moth, Cydia pomonella (Lepidoptera : Tortricidae), using pheromone trap capture data collected in apple and pear orchards in the Langkloof Region
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Studies on the wastage of export grapes : with special reference to that caused by Botrytis cinerea, Pers.
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Environmental and control studies of the common scab disease of potatoes caused by Actinomyces scabies (Thaxt.) Guss.
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Insect pests of some vegetables grown on small scale with special reference to Pieris Brassicae L.(Lepidoptera: Pieridae)
