Incidence of Heterobasidion annosum infection in chemically thinned Norway spruce (Picea abies) stands in Northern Ireland.

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Abstract

This study compared the incidence of Heterobasidion annosum (Fr.) Bref. infection in stands of Norway spruce (Picea abies (L.) Karst.) that had been chemically thinned (by injecting a chemical herbicide into the stem), conventionally thinned (one tree in three) and unthinned. Results showed a high incidence of infection in the chemically treated stands with 95 per cent of the treated trees and 87 per cent of the untreated trees infected by H. annosum. By contrast, none of the trees in both the conventionally thinned and unthinned stands had the infection. Even the low rate of infection (8 per cent) found in the stumps in the conventionally thinned plots had not transferred to the standing trees. The reason why chemically treated trees became so susceptible to colonization by H. annosum is not clear. Research is ongoing to determine the mechanism of infection and whether modifications to this silvicultural procedure can be made.

Original languageEnglish
Pages (from-to)363-366
Number of pages3
JournalForestry the Journal of the Society of Foresters of Great Britain
Volume76
DOIs
Publication statusPublished - 2003

Cite this

@article{77d2646b885b4f6c9b3bd19e4c7c5a6f,
title = "Incidence of Heterobasidion annosum infection in chemically thinned Norway spruce (Picea abies) stands in Northern Ireland.",
abstract = "This study compared the incidence of Heterobasidion annosum (Fr.) Bref. infection in stands of Norway spruce (Picea abies (L.) Karst.) that had been chemically thinned (by injecting a chemical herbicide into the stem), conventionally thinned (one tree in three) and unthinned. Results showed a high incidence of infection in the chemically treated stands with 95 per cent of the treated trees and 87 per cent of the untreated trees infected by H. annosum. By contrast, none of the trees in both the conventionally thinned and unthinned stands had the infection. Even the low rate of infection (8 per cent) found in the stumps in the conventionally thinned plots had not transferred to the standing trees. The reason why chemically treated trees became so susceptible to colonization by H. annosum is not clear. Research is ongoing to determine the mechanism of infection and whether modifications to this silvicultural procedure can be made.",
author = "D. Johnston and Cameron, {Andrew David} and Stephen Woodward",
year = "2003",
doi = "10.1093/forestry/76.3.363",
language = "English",
volume = "76",
pages = "363--366",
journal = "Forestry the Journal of the Society of Foresters of Great Britain",
issn = "0015-752X",
publisher = "Oxford University Press",

}

TY - JOUR

T1 - Incidence of Heterobasidion annosum infection in chemically thinned Norway spruce (Picea abies) stands in Northern Ireland.

AU - Johnston, D.

AU - Cameron, Andrew David

AU - Woodward, Stephen

PY - 2003

Y1 - 2003

N2 - This study compared the incidence of Heterobasidion annosum (Fr.) Bref. infection in stands of Norway spruce (Picea abies (L.) Karst.) that had been chemically thinned (by injecting a chemical herbicide into the stem), conventionally thinned (one tree in three) and unthinned. Results showed a high incidence of infection in the chemically treated stands with 95 per cent of the treated trees and 87 per cent of the untreated trees infected by H. annosum. By contrast, none of the trees in both the conventionally thinned and unthinned stands had the infection. Even the low rate of infection (8 per cent) found in the stumps in the conventionally thinned plots had not transferred to the standing trees. The reason why chemically treated trees became so susceptible to colonization by H. annosum is not clear. Research is ongoing to determine the mechanism of infection and whether modifications to this silvicultural procedure can be made.

AB - This study compared the incidence of Heterobasidion annosum (Fr.) Bref. infection in stands of Norway spruce (Picea abies (L.) Karst.) that had been chemically thinned (by injecting a chemical herbicide into the stem), conventionally thinned (one tree in three) and unthinned. Results showed a high incidence of infection in the chemically treated stands with 95 per cent of the treated trees and 87 per cent of the untreated trees infected by H. annosum. By contrast, none of the trees in both the conventionally thinned and unthinned stands had the infection. Even the low rate of infection (8 per cent) found in the stumps in the conventionally thinned plots had not transferred to the standing trees. The reason why chemically treated trees became so susceptible to colonization by H. annosum is not clear. Research is ongoing to determine the mechanism of infection and whether modifications to this silvicultural procedure can be made.

U2 - 10.1093/forestry/76.3.363

DO - 10.1093/forestry/76.3.363

M3 - Article

VL - 76

SP - 363

EP - 366

JO - Forestry the Journal of the Society of Foresters of Great Britain

JF - Forestry the Journal of the Society of Foresters of Great Britain

SN - 0015-752X

ER -