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September 10, 2025Journal of PhytopathologyOpen Access

First Report of Diaporthe arecae Causing Dieback in Mangifera indica in Brazil

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Dieback caused by Diaporthe arecae was detected in mango trees in Brazil, affecting 40% of the trees surveyed.
Three isolates of Diaporthe arecae were identified using morphological and molecular methods, confirming its role as the causal agent.
Pathogenicity tests conducted on mango tree branches validated the involvement of Diaporthe arecae in disease symptoms.
This finding highlights the importance of monitoring for new plant pathogens in agriculture to prevent severe crop losses.

Implication

Observation reveals 40% disease incidence due to Diaporthe arecae in mango trees, indicating a new threat.

Abstract

In 2024, dieback was detected on mango trees in Pernambuco, Brazil, with 40% disease incidence in all areas visited. Three isolates (MP22, MP27 and MP29) were obtained. Based on morphology, cultural and molecular analysis, the causal agent was identified as Diaporthe arecae . Koch's postulates were fulfilled by pathogenicity tests carried out on mango tree branches (cv. Tommy Atkins). To our knowledge, this is the first report of D. arecae causing dieback in mango (cv. Tommy Atkins) in Brazil.

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Cite This Study

Amaral et al. (2025) studied this question.

synapsesocial.com/papers/68c1955c9b7b07f3a06191b3 https://doi.org/10.1111/jph.70163

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Implication

Observation reveals 40% disease incidence due to Diaporthe arecae in mango trees, indicating a new threat.

First Report of Diaporthe arecae Causing Dieback in Mangifera indica in Brazil

Key Points

Implication

Abstract

Discussion

Cite This Study

First Report of Diaporthe arecae Causing Dieback in Mangifera indica in Brazil

Key Points

Implication

Abstract

Discussion

Cite This Study

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