Old and fresh Gremmeniella abietina damage on Scots pine in eastern Lapland in 1992.

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http://hdl.handle.net/1975/9166

Citation

Silva Fennica. 1994. 28(2): 107–113.

Title: Old and fresh Gremmeniella abietina damage on Scots pine in eastern Lapland in 1992.
Author: Kaitera, Juha; Jalkanen, Risto
Publisher: The Finnish Society of Forest Science and The Finnish Forest Research Institute
Date: 1994
Language: en
ISSN: 0037-5330
URI: http://hdl.handle.net/1975/9166
Abstract: Damage on Scots pine (Pinus sylvestris L.) caused by Gremmeniella abietina (Lagerb.) Morelet was assessed in the summer of 1992 in sixty-seven stands in eastern Lapland. The area and severity of damage were smaller and lighter than had earlier been estimated and occurred especially in stands in the first-thinning stage or in middle age. Significant new infection of 1991 occurred in stands previously heavily infected by G. abietina near the Kemihaara river, lake Naruska, the Naruska river, the Tuntsa river and lake Vilma. Fresh damage occurred mainly in the lower or middle parts of the Scots pine canopies.
Subject: Gremmeniella abietina
männynversosyöpä
Pinus sylvestris
mänty
sienituhot
kasvitaudit
metsätuhot


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