Harri Vasander , Tapio Lindholm

Männynversosyöpätuhot Laaviosuon jat-kolannoituskoealueella

Vasander H., Lindholm T. Männynversosyöpätuhot Laaviosuon jat-kolannoituskoealueella.

English title: Damage caused by Pine die-back (Ascocalyx abietina) on refertilization trial plots on Laaviosuo, Lammi, southern Finland

Abstract

Damage caused by the pathogenic fungus Ascocalyx abietina (Lagerb.) Schläpfer was more common and severe on the trial plots which had been refertilized with NPK or NPK + trace elements than on control or those plots which had been refertilized with wood ash or only some of the macro-nutrients. The incidence of damage was also positively correlated with the density and the mean height growth. It was hypothesized that delayed hardening of shoots in the autumn and frost damage combined with the increased growth and possible micronutrient deficiencies could explain these differences.

Received 31 October 2017 Published 1 January 1985

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