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The effects of phosphite treatment against phytophthora root rot disease on Leucadendron argenteum.

thesis
posted on 2025-02-05, 07:59 authored by Dumsani MsweliDumsani Msweli, Sjirk GeertsSjirk Geerts, Trudy Paap

This study evaluated the effectiveness of phosphite, a systemic fungicide, as a management tool against Phytophthora cinnamomi in South African ecosystems. It also assessed the health status of existing Leucadendron argenteum populations and identified variations in susceptibility to P. cinnamomi. The study utilised field surveys, controlled inoculation experiments, and field trials to assess phosphite effectiveness. Population dynamics and disease susceptibility varied significantly among L. argenteum populations. The Rhodes Memorial site demonstrated high resistance to P. cinnamomi, indicating potential genetic bases for resistance. Phosphite has been shown to reduce disease symptoms in seedlings through controlled inoculation experiments, but these results may not be applicable to mature trees in the field.

Funding

South African national biodiversity institute: Joan Wrench scholarship

History

Is this dataset for graduation purposes?

  • Yes

Supervisor email address

geertss@cput.ac.za

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    Faculty of Applied Sciences

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