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Probability of fusiform rust in southern pines varies with pine species, management, stand age, and oak species.

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Bibliographic Details
Title: Probability of fusiform rust in southern pines varies with pine species, management, stand age, and oak species.
Authors: Pandit, Karun1,2 (AUTHOR), Johnson, Daniel J.1 (AUTHOR) johnson.daniel@ufl.edu
Source: Canadian Journal of Forest Research. 12/15/2025, Vol. 55, p1-11. 11p.
Subject Terms: *Tree breeding, Pine, Disease prevalence, Rust diseases, Red oak, Organization management, Tree age
Geographic Terms: United States
Abstract: Fusiform rust disease has been one of the most damaging diseases in the southeastern United States pine forests. Tree improvement programs and other silvicultural techniques have been applied to control the disease. Recent evidence suggests a potential species-specific decline in disease prevalence in some geographical regions. Previous studies had mostly focused on plantations and selected regions of the species ranges. In this study, we tried to understand the relationship between fusiform rust disease incidences and key tree and forest variables for both natural and planted stands of the three dominant southeastern pine species across the southern region using Forest Inventory and Analysis data. We applied generalized linear mixed models to describe the relations between the disease and the characteristics of pine trees and forest stands. We found pine species, management, stand age, and presence of certain oak species are related to the disease. While slash pine plantations had a higher incidence of disease, loblolly pines were less infected in plantations than in natural stands, likely due to the positive impact of disease-resistant plantation stocks. We suggest further efforts are necessary to control fusiform rust in slash pine plantations and management actions could focus on controlling specific oak species. [ABSTRACT FROM AUTHOR]
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Database: GreenFILE
Description
Abstract:Fusiform rust disease has been one of the most damaging diseases in the southeastern United States pine forests. Tree improvement programs and other silvicultural techniques have been applied to control the disease. Recent evidence suggests a potential species-specific decline in disease prevalence in some geographical regions. Previous studies had mostly focused on plantations and selected regions of the species ranges. In this study, we tried to understand the relationship between fusiform rust disease incidences and key tree and forest variables for both natural and planted stands of the three dominant southeastern pine species across the southern region using Forest Inventory and Analysis data. We applied generalized linear mixed models to describe the relations between the disease and the characteristics of pine trees and forest stands. We found pine species, management, stand age, and presence of certain oak species are related to the disease. While slash pine plantations had a higher incidence of disease, loblolly pines were less infected in plantations than in natural stands, likely due to the positive impact of disease-resistant plantation stocks. We suggest further efforts are necessary to control fusiform rust in slash pine plantations and management actions could focus on controlling specific oak species. [ABSTRACT FROM AUTHOR]
ISSN:00455067
DOI:10.1139/cjfr-2025-0040