Etiology of Diplodia tip blight outbreak on slash pine in Florida

Eric J. Jokela; Patrick D. James; Jason A. Smith; Claudia A. Paez

doi:10.2737/WO-GTR-105a-Chap4

Treesearch

Etiology of Diplodia tip blight outbreak on slash pine in Florida

Informally Refereed

Authors:

Eric J. Jokela, Patrick D. James, Jason A. Smith, Claudia A. Paez

Year:

2025

Type:

Book Chapter

Station:

Washington Office

DOI:

https://doi.org/10.2737/WO-GTR-105a-Chap4

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Download (PDF 369 KB): https://research.fs.usda.gov/download/treesearch/69338.pdf

Abstract

This study focused on an outbreak of D. sapinea and Diplodia scrobiculata, which caused extensive dieback and mortality of slash pines (Pinus elliottii) along a highway in central Florida starting in 2012. The presence of an unusually large and uniform outbreak led to concern about what factors were responsible in the development of the outbreak. The objectives of this study were to (1) examine the effect of nutrients in this outbreak and (2) investigate the role of nitrogen in disease severity using inoculated saplings.

Parent Publication

Forest Health Monitoring: Evaluation Monitoring project summaries 2023

Citation

Paez, Claudia A.; Jokela, Eric J.; James, Patrick D.; Smith, Jason A. 2025. Etiology of Diplodia tip blight outbreak on slash pine in Florida. In: Conkling, B.L.; Pandit, K., eds. Forest Health Monitoring: Evaluation Monitoring project summaries 2023. Gen. Tech. Rep. WO-105a. Washington, DC: U.S. Department of Agriculture, Forest Service: 25–30. Chapter 4. https://doi.org/10.2737/WO-GTR-105a-Chap4.