Balsam woolly adelgid (Homoptera: Adelgidae) and spruce-fir decline in the southern Appalachians: assessing pest relevance in a damaged ecosystem

Research on tree decline has shown that the proportion of sapwood area to heartwood area is an important measure of tree health. Infestation by the balsam woolly adelgid (BWA), Adelges piceae (Ratz.), causes the formation of abnormal wood, which is thought to conduct sap poorly. BWA infestation is a...

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Veröffentlicht in:The Florida entomologist 1991-06, Vol.74 (2), p.179-187
Hauptverfasser: Hollingsworth, R.G. (North Carolina State University, Raleigh, NC), Hain, F.P
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creator Hollingsworth, R.G. (North Carolina State University, Raleigh, NC)
Hain, F.P
description Research on tree decline has shown that the proportion of sapwood area to heartwood area is an important measure of tree health. Infestation by the balsam woolly adelgid (BWA), Adelges piceae (Ratz.), causes the formation of abnormal wood, which is thought to conduct sap poorly. BWA infestation is also associated with lower (more negative) xylem pressure potentials and increased areas of heartwood. We hypothesize that lower pressure potentials (a consequence of abnormal wood production) increase the rate of cavitation (gas-filling) of sapwood tracheids, thereby accelerating heartwood formation. If this hypothesis is correct, adelgid attack causes loss of functional sapwood both directly and indirectly. There is evidence that the balsam woolly adelgid is an important factor causing the decline of Fraser fir, Abies fraseri (Pursh) Poiret, in the southern Appalachians. However adelgid damage is probably interacting with many other environmental factors to cause reductions in per cent sapwood area. Determining the relevance of this pest to tree decline can be accomplished by examing the relationship that exists between adelgid infestation, increment growth, and per cent sapwood area. /// En investigaciones se ha demostrado que la proporción alburduramen es una medida que se relaciona con la sanidad y vigor de arboles en decadencia. Infestaciones de el adelgido algodonoso del balsamo (BWA), Adelges piceae (Ratz.), causan la formación de madera anormal y disminuyen la conducción de la savia. La infestacion de BWA también se asocia con presion potencial baja (negativa) del xylema y con el incremento del duramen. Nosotros sostenemos la hipotesis de que presiones potenciales bajas (a consecuencia de la producción anormal de madera) incrementan la tasa de cavitación (llenado de gases) de las traqueidas del albur, causando la aceleración de formación del duramen. Si esta hipotesis es correcta, el ataque del adelgido causa una perdida directa e indirecta del albur. Hay evidencia de que el adelgido algodonoso del balsamo es un factor importante para el declive de pino Fraser, Abies fraseri (Pursh) Parret, en el sur de los Apalaches. Probablemente el daño del adelgido esta interactuando con otros factores del medio ambiente, lo cual causa reducciones en un porcentaje del area de albur. Para determinar la importancia de esta plaga en el declive del árbol, se puede examinar la relación que existe entre las infestaciones de adelgidos, incremento del crecimiento y el porcen
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(North Carolina State University, Raleigh, NC) ; Hain, F.P</creator><creatorcontrib>Hollingsworth, R.G. (North Carolina State University, Raleigh, NC) ; Hain, F.P</creatorcontrib><description>Research on tree decline has shown that the proportion of sapwood area to heartwood area is an important measure of tree health. Infestation by the balsam woolly adelgid (BWA), Adelges piceae (Ratz.), causes the formation of abnormal wood, which is thought to conduct sap poorly. BWA infestation is also associated with lower (more negative) xylem pressure potentials and increased areas of heartwood. We hypothesize that lower pressure potentials (a consequence of abnormal wood production) increase the rate of cavitation (gas-filling) of sapwood tracheids, thereby accelerating heartwood formation. If this hypothesis is correct, adelgid attack causes loss of functional sapwood both directly and indirectly. There is evidence that the balsam woolly adelgid is an important factor causing the decline of Fraser fir, Abies fraseri (Pursh) Poiret, in the southern Appalachians. However adelgid damage is probably interacting with many other environmental factors to cause reductions in per cent sapwood area. Determining the relevance of this pest to tree decline can be accomplished by examing the relationship that exists between adelgid infestation, increment growth, and per cent sapwood area. /// En investigaciones se ha demostrado que la proporción alburduramen es una medida que se relaciona con la sanidad y vigor de arboles en decadencia. Infestaciones de el adelgido algodonoso del balsamo (BWA), Adelges piceae (Ratz.), causan la formación de madera anormal y disminuyen la conducción de la savia. La infestacion de BWA también se asocia con presion potencial baja (negativa) del xylema y con el incremento del duramen. Nosotros sostenemos la hipotesis de que presiones potenciales bajas (a consecuencia de la producción anormal de madera) incrementan la tasa de cavitación (llenado de gases) de las traqueidas del albur, causando la aceleración de formación del duramen. Si esta hipotesis es correcta, el ataque del adelgido causa una perdida directa e indirecta del albur. Hay evidencia de que el adelgido algodonoso del balsamo es un factor importante para el declive de pino Fraser, Abies fraseri (Pursh) Parret, en el sur de los Apalaches. Probablemente el daño del adelgido esta interactuando con otros factores del medio ambiente, lo cual causa reducciones en un porcentaje del area de albur. 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(North Carolina State University, Raleigh, NC)</creatorcontrib><creatorcontrib>Hain, F.P</creatorcontrib><title>Balsam woolly adelgid (Homoptera: Adelgidae) and spruce-fir decline in the southern Appalachians: assessing pest relevance in a damaged ecosystem</title><title>The Florida entomologist</title><description>Research on tree decline has shown that the proportion of sapwood area to heartwood area is an important measure of tree health. Infestation by the balsam woolly adelgid (BWA), Adelges piceae (Ratz.), causes the formation of abnormal wood, which is thought to conduct sap poorly. BWA infestation is also associated with lower (more negative) xylem pressure potentials and increased areas of heartwood. We hypothesize that lower pressure potentials (a consequence of abnormal wood production) increase the rate of cavitation (gas-filling) of sapwood tracheids, thereby accelerating heartwood formation. If this hypothesis is correct, adelgid attack causes loss of functional sapwood both directly and indirectly. There is evidence that the balsam woolly adelgid is an important factor causing the decline of Fraser fir, Abies fraseri (Pursh) Poiret, in the southern Appalachians. However adelgid damage is probably interacting with many other environmental factors to cause reductions in per cent sapwood area. Determining the relevance of this pest to tree decline can be accomplished by examing the relationship that exists between adelgid infestation, increment growth, and per cent sapwood area. /// En investigaciones se ha demostrado que la proporción alburduramen es una medida que se relaciona con la sanidad y vigor de arboles en decadencia. Infestaciones de el adelgido algodonoso del balsamo (BWA), Adelges piceae (Ratz.), causan la formación de madera anormal y disminuyen la conducción de la savia. La infestacion de BWA también se asocia con presion potencial baja (negativa) del xylema y con el incremento del duramen. Nosotros sostenemos la hipotesis de que presiones potenciales bajas (a consecuencia de la producción anormal de madera) incrementan la tasa de cavitación (llenado de gases) de las traqueidas del albur, causando la aceleración de formación del duramen. Si esta hipotesis es correcta, el ataque del adelgido causa una perdida directa e indirecta del albur. Hay evidencia de que el adelgido algodonoso del balsamo es un factor importante para el declive de pino Fraser, Abies fraseri (Pursh) Parret, en el sur de los Apalaches. Probablemente el daño del adelgido esta interactuando con otros factores del medio ambiente, lo cual causa reducciones en un porcentaje del area de albur. Para determinar la importancia de esta plaga en el declive del árbol, se puede examinar la relación que existe entre las infestaciones de adelgidos, incremento del crecimiento y el porcentaje del area de albur.</description><subject>ABIES FRASERI</subject><subject>Adelges piceae</subject><subject>Adelgidae</subject><subject>Bark</subject><subject>BLACK MOUNTAINS, NORTH CAROLINA</subject><subject>BOSQUES</subject><subject>CAROLINA DEL NORTE</subject><subject>CAROLINE DU NORD</subject><subject>Compression wood</subject><subject>DAMAGE</subject><subject>DANOS</subject><subject>DEGAT</subject><subject>DREYFUSIA</subject><subject>DREYFUSIA PICEAE</subject><subject>ENFERMEDADES DE LAS PLANTAS</subject><subject>ENVIRONMENTAL FACTORS</subject><subject>FACTEUR DU MILIEU</subject><subject>FACTORES AMBIENTALES</subject><subject>FORESTS</subject><subject>FORET</subject><subject>Forum</subject><subject>Heartwood</subject><subject>HIGHLAND</subject><subject>Homoptera</subject><subject>Infestation</subject><subject>INTERACTIONS</subject><subject>MALADIE DES PLANTES</subject><subject>Mortality</subject><subject>NORTH CAROLINA</subject><subject>PICEA RUBENS</subject><subject>PLANT DISEASES</subject><subject>REGION D'ALTITUDE</subject><subject>Sapwood</subject><subject>Stems</subject><subject>Tracheids</subject><subject>Trees</subject><subject>Xylem</subject><subject>ZONA DE MONTANA</subject><issn>0015-4040</issn><issn>1938-5102</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1991</creationdate><recordtype>article</recordtype><recordid>eNp9kE1P3DAQhi3USmxpxb0nHypoD6H-TNbcFtQWJCQOLedoak8WIycOnixof0b_cUPDuadXGj0zeudh7FiKM6VF81UbZ5UzB2wlnV5XVgr1hq2EkLYywohD9o7oQQjhlLUr9ucCEkHPn3NOac8hYNrGwD9f5T6PExY455tlBviFwxA4jWXnsepi4QF9igPyOPDpHjnl3Rxl4JtxhAT-PsJA5xyIkCgOWz4iTbxgwicY_L814AF62GLg6DPtacL-PXvbzZ3ww2sesbvv335dXlU3tz-uLzc3lVfaTJXqQNY4P6yVsK7GGoOC342tUaHznYLQoPFOdEYaCKHWswhjfBBa1dY5q4_YyXJ3LPlxNzdr-0geU4IB845aWQtdy2Y9g6cL6EsmKti1Y4k9lH0rRfuivH1VPpOfFvKBplz-g31csA5yC9sSqb376aQz68bpv4Gih-0</recordid><startdate>19910601</startdate><enddate>19910601</enddate><creator>Hollingsworth, R.G. (North Carolina State University, Raleigh, NC)</creator><creator>Hain, F.P</creator><general>Florida Entomological Society</general><scope>FBQ</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SN</scope><scope>7SS</scope><scope>C1K</scope></search><sort><creationdate>19910601</creationdate><title>Balsam woolly adelgid (Homoptera: Adelgidae) and spruce-fir decline in the southern Appalachians: assessing pest relevance in a damaged ecosystem</title><author>Hollingsworth, R.G. (North Carolina State University, Raleigh, NC) ; Hain, F.P</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c234t-2fa16e307320596e6ed2ab756e2e9cf2ad7e4c90f414add6351044cd032659953</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1991</creationdate><topic>ABIES FRASERI</topic><topic>Adelges piceae</topic><topic>Adelgidae</topic><topic>Bark</topic><topic>BLACK MOUNTAINS, NORTH CAROLINA</topic><topic>BOSQUES</topic><topic>CAROLINA DEL NORTE</topic><topic>CAROLINE DU NORD</topic><topic>Compression wood</topic><topic>DAMAGE</topic><topic>DANOS</topic><topic>DEGAT</topic><topic>DREYFUSIA</topic><topic>DREYFUSIA PICEAE</topic><topic>ENFERMEDADES DE LAS PLANTAS</topic><topic>ENVIRONMENTAL FACTORS</topic><topic>FACTEUR DU MILIEU</topic><topic>FACTORES AMBIENTALES</topic><topic>FORESTS</topic><topic>FORET</topic><topic>Forum</topic><topic>Heartwood</topic><topic>HIGHLAND</topic><topic>Homoptera</topic><topic>Infestation</topic><topic>INTERACTIONS</topic><topic>MALADIE DES PLANTES</topic><topic>Mortality</topic><topic>NORTH CAROLINA</topic><topic>PICEA RUBENS</topic><topic>PLANT DISEASES</topic><topic>REGION D'ALTITUDE</topic><topic>Sapwood</topic><topic>Stems</topic><topic>Tracheids</topic><topic>Trees</topic><topic>Xylem</topic><topic>ZONA DE MONTANA</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hollingsworth, R.G. (North Carolina State University, Raleigh, NC)</creatorcontrib><creatorcontrib>Hain, F.P</creatorcontrib><collection>AGRIS</collection><collection>CrossRef</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Environmental Sciences and Pollution Management</collection><jtitle>The Florida entomologist</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Hollingsworth, R.G. (North Carolina State University, Raleigh, NC)</au><au>Hain, F.P</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Balsam woolly adelgid (Homoptera: Adelgidae) and spruce-fir decline in the southern Appalachians: assessing pest relevance in a damaged ecosystem</atitle><jtitle>The Florida entomologist</jtitle><date>1991-06-01</date><risdate>1991</risdate><volume>74</volume><issue>2</issue><spage>179</spage><epage>187</epage><pages>179-187</pages><issn>0015-4040</issn><eissn>1938-5102</eissn><abstract>Research on tree decline has shown that the proportion of sapwood area to heartwood area is an important measure of tree health. Infestation by the balsam woolly adelgid (BWA), Adelges piceae (Ratz.), causes the formation of abnormal wood, which is thought to conduct sap poorly. BWA infestation is also associated with lower (more negative) xylem pressure potentials and increased areas of heartwood. We hypothesize that lower pressure potentials (a consequence of abnormal wood production) increase the rate of cavitation (gas-filling) of sapwood tracheids, thereby accelerating heartwood formation. If this hypothesis is correct, adelgid attack causes loss of functional sapwood both directly and indirectly. There is evidence that the balsam woolly adelgid is an important factor causing the decline of Fraser fir, Abies fraseri (Pursh) Poiret, in the southern Appalachians. However adelgid damage is probably interacting with many other environmental factors to cause reductions in per cent sapwood area. Determining the relevance of this pest to tree decline can be accomplished by examing the relationship that exists between adelgid infestation, increment growth, and per cent sapwood area. /// En investigaciones se ha demostrado que la proporción alburduramen es una medida que se relaciona con la sanidad y vigor de arboles en decadencia. Infestaciones de el adelgido algodonoso del balsamo (BWA), Adelges piceae (Ratz.), causan la formación de madera anormal y disminuyen la conducción de la savia. La infestacion de BWA también se asocia con presion potencial baja (negativa) del xylema y con el incremento del duramen. Nosotros sostenemos la hipotesis de que presiones potenciales bajas (a consecuencia de la producción anormal de madera) incrementan la tasa de cavitación (llenado de gases) de las traqueidas del albur, causando la aceleración de formación del duramen. Si esta hipotesis es correcta, el ataque del adelgido causa una perdida directa e indirecta del albur. Hay evidencia de que el adelgido algodonoso del balsamo es un factor importante para el declive de pino Fraser, Abies fraseri (Pursh) Parret, en el sur de los Apalaches. Probablemente el daño del adelgido esta interactuando con otros factores del medio ambiente, lo cual causa reducciones en un porcentaje del area de albur. Para determinar la importancia de esta plaga en el declive del árbol, se puede examinar la relación que existe entre las infestaciones de adelgidos, incremento del crecimiento y el porcentaje del area de albur.</abstract><pub>Florida Entomological Society</pub><doi>10.2307/3495294</doi><tpages>9</tpages></addata></record>
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identifier ISSN: 0015-4040
ispartof The Florida entomologist, 1991-06, Vol.74 (2), p.179-187
issn 0015-4040
1938-5102
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source Jstor Journals Open Access
subjects ABIES FRASERI
Adelges piceae
Adelgidae
Bark
BLACK MOUNTAINS, NORTH CAROLINA
BOSQUES
CAROLINA DEL NORTE
CAROLINE DU NORD
Compression wood
DAMAGE
DANOS
DEGAT
DREYFUSIA
DREYFUSIA PICEAE
ENFERMEDADES DE LAS PLANTAS
ENVIRONMENTAL FACTORS
FACTEUR DU MILIEU
FACTORES AMBIENTALES
FORESTS
FORET
Forum
Heartwood
HIGHLAND
Homoptera
Infestation
INTERACTIONS
MALADIE DES PLANTES
Mortality
NORTH CAROLINA
PICEA RUBENS
PLANT DISEASES
REGION D'ALTITUDE
Sapwood
Stems
Tracheids
Trees
Xylem
ZONA DE MONTANA
title Balsam woolly adelgid (Homoptera: Adelgidae) and spruce-fir decline in the southern Appalachians: assessing pest relevance in a damaged ecosystem
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