Section 14
Chapter 13,130

Fusiform rust incidence in loblolly and slash pine plantations in East Texas

Arabatzis, A.; Gregoire, T.; Lenhart, J.

Southern journal of applied forestry 15(2): 79-84


DOI: 10.1093/sjaf/15.2.79
Accession: 013129969

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A method to predict the incidence of fusiform rust (Cronartium quercuum [Berk.] Miyabe ex Shirai f. sp. fusiforme) in unthinned loblolly (Pinus taeda L.) and slash pine (Pinus elliotti Englem.) plantations located on non-old-fields in East Texas is presented. In addition, procedures are described to estimate changes in rust incidence over time as: 1. A rust-free tree remains rust free, develops stem or branch galls, or dies. 2. A tree with branch galls remains with branch galls only, develops stem galls, or dies. 3. A tree with stem galls remains with stem galls, or dies. Multinomial logistic regression models utilizing basic plantation parameters as predictors were fit to estimate current rust incidence and, then, the change in rust condition over time.