Spectrum of in-vitro activity and efficacy of phosphonates for management of apple replant disease and Oomycete root rot pathogens in South Africa by Nyoni, Makomborero

Subjects: “…Apples -- Diseases and pests -- Control -- South Africa -- Western Cape…”
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An investigation into the integrated pest management of the obscure mealybug, Pseudococcus viburni (Signoret) (Hemiptera: Pseudococcidae), in pome fruit orchards in the Western Cap... by Mudavanhu, Pride

Subjects: “…Apples -- Diseases and pests -- Control -- South Africa -- Western Cape…”
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Quarantine status of selected fungal pathogens on Malus, Prunus and Vitis species by Carstens, Elma

Subjects: “…Apples -- Diseases and pests -- Control -- South Africa…”
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