The severity of Sirococcus shoot blight in mature Norway spruce stands with regard to tree nutrition, topography and stand age

Anglberger, H.; Halmschlager, Erhard

doi:10.1016/s0378-1127(02)00440-1

Cited by 14 publications

(11 citation statements)

References 20 publications

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“…or Penicillium expansum Link, whereas increased Ca concentrations decreased spore germination and growth of both pathogens. Although Anglberger and Halmschlager (2003) reported that severity of Sirococcus shoot blight decreased on P. abies trees that had needles with high levels of Mg, this experiment found that the treatment that produced the highest concentration of foliar Mg (50% treatment) fared just as poorly as the other treatments.…”

Section: Discussioncontrasting

confidence: 63%

“…Sij et al (1985) reported that increased rates of K fertilizer significantly decreased the impacts of a fungal disease on field grown soybean plants. Jeffers et al (1982) reported lower numbers of seeds infected with seed mold on tomato plants fertilized with K. Likewise, the severity of fungal shoot blight was greater on Picea abies (Norway spruce) trees whose needles contained low levels of Mg (Anglberger and Halmschlager 2003).…”

Section: Introductionmentioning

confidence: 99%

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Influence of calcium, potassium, and magnesium on Cornus florida L. density and resistance to dogwood anthracnose

2006

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Dogwood anthracnose, a major disease of Cornus florida L., has caused heavy mortality of C. florida in eastern United States forests. Disease severity and rate of infection have been shown to vary with several environmental factors, but the link between soil cation availability and anthracnose has not been examined. We hypothesized that soil cation availability, particularly calcium (Ca), potassium (K), and magnesium (Mg), would influence dogwood survival from anthracnose. In forested stands, positive correlations between soil Ca, K, and Mg saturation and C. florida stem density and basal area were found. The effect of these cations at four levels (0, 50, 100, and 200%) of a standard nursery fertilization rate on C. florida seedling survival and resistance to dogwood anthracnose was tested. Although most of the seedlings died after one season of exposure to dogwood anthracnose, seedlings that had lower inputs of Ca and K cations showed higher levels of disease severity sooner than seedlings in other treatments, suggesting that these nutrients play a role in C. florida survival from anthracnose. Magnesium treatment levels did not appear to have an effect on C. florida disease severity or mortality.

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Section: Discussioncontrasting

confidence: 63%

Section: Introductionmentioning

confidence: 99%

Influence of calcium, potassium, and magnesium on Cornus florida L. density and resistance to dogwood anthracnose

2006

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“…), and this was associated with an increase in nitrogen content of shoots (DesprezLoustau and Wagner, 1997). Similarly, increased susceptibility of Norway spruce (Picea abies (L.) Karsten) to Sirococcus shoot blight was correlated with high needle N/Mg and N/Ca ratios (Anglberger and Halmschlager, 2003). However, evidence linking elevated nutrient availability with increased host susceptibility is less clear with other pathogen groups.…”

Section: Discussionmentioning

confidence: 99%

Effects of fertilization on red pine defense chemistry and resistance to Sphaeropsis sapinea

Blodgett

Herms

Bonello

2005

Forest Ecology and Management

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“…Sites offering favourable conditions for spore infection, such as high humidity or low air movement, are to a greater extent susceptible to fungal diseases. For example, the most severe damage caused by the pine shoot blight and canker, Sphaeropsis sapinea, are found in protected valley sites (Wingfield and Swart, 1994), while spruce stands on slopes or hilltops with a high incidence of fog and westerly winds of high humidity are highly disposed to shoot blight, Sirococcus conigenus (Anglberger and Halmschlager, 2003). In contrast, stands with lower moisture are more susceptible to fire hazard (e.g.…”

Section: Site Selectionmentioning

confidence: 99%

The influences of forest stand management on biotic and abiotic risks of damage

Jactel

Nicoll

Branco³

et al. 2009

Ann. For. Sci.

236

167

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Abstract• This article synthesizes and reviews the available information on the effects of forestry practices on the occurrence of biotic and abiotic hazards, as well as on stand susceptibility to these damaging agents, concentrating on mammal herbivores, pest insects, pathogenic fungi, wind and fire.• The management operations examined are site selection, site preparation, stand composition, regeneration method, cleaning and weed control, thinning and pruning, and harvesting. For each of these operations we have examined how they influence the occurrence of biotic and abiotic damaging agents, the susceptibility of European forests, and describe the ecological processes that may explain these influences.• Overall, we find that the silvicultural operations that have the largest influence on both biotic and abiotic risks to European forest stands are closely related to species composition and the structure of the overstorey. Four main processes that drive the causal relationships between stand management and susceptibility have been identified: effect on local microclimate, provision of fuel and resources to biotic and abiotic hazards, enhancement of biological control by natural enemies and changes in individual tree physiology and development.• The review demonstrates an opportunity to develop silvicultural methods that achieve forest management objectives at the same time as minimising biotic and abiotic risks. Mots-clés :sylviculture / peuplement / occurrence / sensibilité / Résumé -Influences de la sylviculture sur le risque de dégâts biotiques et abiotiques dans les peuplements forestiers.• Cette revue bibliographique s'intéresse aux effets de la sylviculture sur la sensibilité des peuplements forestiers aux principaux agents de dégâts biotiques et abiotiques que sont les mammifères herbivores, les insectes ravageurs, les champignons pathogènes, le feu et les vents forts. * Corresponding author: herve.jactel@pierroton.inra.frArticle published by EDP Sciences Ann. For. Sci. 66 (2009) 701 H. Jactel et al.• Les pratiques forestières analysées sont la sélection et la préparation des sites de reboisement, la définition de la composition en essences et le choix du matériel génétique, les méthodes de régé-nération et d'entretien, les modalités d'éclaircie et d'élagage, le mode de récolte finale. L'influence de chacune de ces opérations sur l'occurrence des agents de dégâts biotiques et abiotiques et sur la sensibilité des peuplements est examinée ainsi que les processus écologiques sous-jacents.• Les opérations sylvicoles qui se révèlent les plus déterminantes pour la sensibilité des forêts en Europe sont celles qui affectent la composition et la structure de la strate arborée. Quatre principaux processus écologiques semblent expliquer la relation entre sylviculture et sensibilité des peuplements : la modification du micro-climat, l'apport de ressources ou de combustible aux agents de dégâts, l'amélioration du contrôle biologique par les ennemis naturels et l'altération de la physiologie et du développement des arb...

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The severity of Sirococcus shoot blight in mature Norway spruce stands with regard to tree nutrition, topography and stand age

Cited by 14 publications

References 20 publications

Influence of calcium, potassium, and magnesium on Cornus florida L. density and resistance to dogwood anthracnose

Influence of calcium, potassium, and magnesium on Cornus florida L. density and resistance to dogwood anthracnose

Effects of fertilization on red pine defense chemistry and resistance to Sphaeropsis sapinea

The influences of forest stand management on biotic and abiotic risks of damage

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