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This research aims to identify the pathogen responsible for branch dieback in blueberry plants in South Africa.

May 14, 2026New Disease ReportsOpen Access

First Report of Lasiodiplodia mahajangana Causing Branch Dieback of Blueberry in South Africa

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Randomized trial confirms branch dieback caused by Lasiodiplodia mahajangana in blueberries, suggesting the need for ongoing monitoring.

This research aims to identify the pathogen responsible for branch dieback in blueberry plants in South Africa.
Plants showing symptoms were collected and analyzed in a laboratory.
Molecular identification was performed using DNA sequencing of specific regions.
Pathogenicity was confirmed through inoculation of healthy blueberry plants in controlled conditions.
Lasiodiplodia mahajangana was identified as the cause of significant lesions on inoculated plants.
Branch dieback occurred in the infected plants while control plants showed no lesions.
The disease currently does not cause significant losses in South African blueberry farms.

Jami et al. (2026) studied this question.

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