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Sphaeropsis Triebsterben und Ernährungszustand in Pinus resinosa‐Plantagen nach Düngung mit Klärschlamm aus einer Papierfabrik
Author(s) -
Stanosz G. R.,
Trobaugh J.,
Guthmiller M. A.,
Stanosz J. C.
Publication year - 2004
Publication title -
forest pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.535
H-Index - 49
eISSN - 1439-0329
pISSN - 1437-4781
DOI - 10.1111/j.1439-0329.2004.00366.x
Subject(s) - shoot , biology , blight , canker , pinus <genus> , horticulture , agronomy , botany
Summary During 1993 progressive, severe shoot blight and canker disease in crowns of mature, merchantable red pines ( Pinus resinosa ) in central Wisconsin was noted in plantations in which paper mill waste sludge previously had been applied. For eight treated plantations and six non‐treated plantations, incidence of shoot blight attributed to the pathogenic fungus Sphaeropsis sapinea (syn. Diplodia pinea ) was quantified during 1993 or 1994. Foliage and soil samples also were collected for analyses. Sphaeropsis shoot blight was more frequent in treated plantations than in the non‐treated stands (means of 81% of trees and 10.2% of shoots compared with 7% of trees and 0.1% of shoots, respectively). Consistent with other reports of damage caused by some diseases of conifers in situations of altered host nutrition, mean foliar N concentrations were higher in treated plantations (1.61%) than non‐treated plantations (1.31%) (p < 0.001). Mean foliar Zn, Mn, Cu, and Al concentrations were lower in treated plantations than non‐treated plantations, and mean soil P, Ca, and Mg concentrations were higher in treated plantations than non‐treated plantations.