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Silva Fennica 1926-1997
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Acta Forestalia Fennica
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Articles containing the keyword 'snow blight'

Category : Article

article id 5611, category Article
Arja Lilja, Timo Kurkela, Sakari Lilja, Risto Rikala.. (1997). Nursery practices and management of fungal diseases in forest nurseries in Finland. A review. Silva Fennica vol. 31 no. 1 article id 5611. https://doi.org/10.14214/sf.a8512
Keywords: Pinus sylvestris; Picea abies; forest nursery; Betula spp.; Finland; damping-off; grey mold; root dieback; scleroderris canker; pine twisting rust; seedlings; fungal diseases; Godronia multispora; Lophodermium needle cast; snow blights; birch rust; stem lesions of birch; leaf lesions of birch; Lophodermium pinastri; Botrytis cinerea; Melampsora pinitorqua; Melampsoridium betulinum
Abstract | View details | Full text in PDF | Author Info

The purpose of this article was to collate the literature on fungal diseases that occur on seedlings in forest nurseries. It describes the symptoms of the diseases, the infection pattern of each fungus and the possibilities of controlling the diseases. As background a short introduction is given on forests and nursery practices in Finland.

  • Lilja, E-mail: al@mm.unknown (email)
  • Kurkela, E-mail: tk@mm.unknown
  • Lilja, E-mail: sl@mm.unknown
  • Rikala., E-mail: rr@mm.unknown

Category : Article

article id 7612, category Article
Timo Kurkela. (1969). Antagonism of healthy and diseased Ericaceous plants to snow blight on Scots pine. Acta Forestalia Fennica no. 101 article id 7612. https://doi.org/10.14214/aff.7612
Keywords: Pinus sylvestris; antagonism; Scots pine; Vaccinium vitis-idaea; pathogens; Calluna vulgaris; control; snow blight; Phacidium infestans; ericaceous evergreens
Abstract | View details | Full text in PDF | Author Info

Two experiments were conducted in Punkaharju and Leivonmäki in the Central Finland in 1966-67 where the spread of the snow blight caused by Phacidium infestans Karst. was investigated in rows of excised branches from a ten-year-old stand of Scots pine (Pinus sylvestris L.). Ericaceous plants (Calluna vulgaris (L.) Hull and Vaccinium vitis-idaea L.) infected with snow moulds were used to determine their influence on the spread of snow blight.

The results show that significant inhibition of snow blight in Scots pine can be achieved with foliage of ericaceous evergreens. The mechanism of this inhibition is an object of conjecture. In healthy ericaceous vegetation it might be caused by saprophytic fungi living on surface of plants or by some constituent of the foliage. In the case of dead ericaceous foliage, the cause of inhibition seems to be the antagonism of other snow moulds. The antagonism of certain saprophytic organism is well known.

The observed inhibition suggests that ericaceous vegetation may be helpful for reforestation by offering a natural control of snow blight, when seedlings of Scots pine do not stand above the surrounding vegetation.

The PDF includes a summary in Finnish.

  • Kurkela, E-mail: tk@mm.unknown (email)

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