The dynamics of an introduced pathogen in a native Monterey pine (Pinus radiata) forest

Wikler, Karen; Storer, Andrew J.; Newman, Wendi B.; Gordon, Thomas R.; Wood, David L.

doi:10.1016/s0378-1127(02)00524-8

Cited by 39 publications

(44 citation statements)

References 8 publications

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“…The infection seemed to be more abundant in the large trees with good competitive positions. That was in line with the results of Wikler et al (2003) from Monterey peninsula, where small trees were less severely infected than large trees. Further, seedlings and saplings (d < 2.54 cm) were less often infected (46% infected) than large trees (90% infected) at Scotts Creek.…”

Section: Discussionsupporting

confidence: 89%

“…The fungus causes girdling lesions on branches, roots, and main stems of trees. They can cause extensive die-back in the crown and may lead to death of the tree, directly or by predisposing trees to infestations by bark beetles (Wikler et al, 2003). There are no studies that have fully evaluated the implementation of even-or uneven-aged forest management strate gies in Monterey pine stands in California.…”

mentioning

confidence: 99%

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Structure and development of pitch canker infected Monterey pine stands at Año Nuevo, California

Piirto

Valkonen

2005

Forest Ecology and Management

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The sustainability of indigenous Monterey pine (Pinus radiata D. Don) at Año Nuevo stands in the central coast of California was examined. The foremost management objective in these stands is to establish and maintain stand structures that ensure a sustainable presence of the species in terms of uneven-aged management. The major threats are the proliferation of shadetolerant tree species and the pitch canker (Fusarium circinatum) disease. The study was based on data from 17 systematically placed sample plots, measured once, in one stand with a very high degree of variation in stand structure and species composition. The results indicated that the sustainability of Monterey pine is not assured by existing stand structures. Monterey pine regeneration is almost completely lacking. Intensive shading and competition from high stand densities of shade-tolerant broadleaf trees are inhibiting regeneration, and growth of seedlings and saplings. Pitch canker is affecting growth, vigor, and competitive status of Monterey pine, but its progress and long-term impact remain unknown. Single tree or group selection cuttings, combined with treatments that enhance regeneration, are urgently required for the promotion of Monterey pine.

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Section: Discussionsupporting

confidence: 89%

mentioning

confidence: 99%

Structure and development of pitch canker infected Monterey pine stands at Año Nuevo, California

Piirto

Valkonen

2005

Forest Ecology and Management

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“…Pitch canker is significantly more severe, and is spreading faster in managed landscape types than in the wild land stands (Wikler et al, 2003). In the current study, the distance between the two sites is only about 10 kilometers, but we observed more damaged trees by the pitch canker in the site FS than in the site FT.…”

Section: Resultscontrasting

confidence: 52%

Assessment of Pathogenic Variation against Pitch Canker Pathogen, Fusarium circinatum in Pinus thunbergii and Responses of Natural Selection Pinus × rigitaeda to Branch Inoculation in a Seed Orchard

Woo¹,

Yoon²,

Han³

et al. 2010

The Plant Pathology Journal

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A half-sib family of two 4-year-old seedlings of Pinus × rigitaeda was inoculated with each of 20 Pinus thunbergii isolates of Fusarium circinatum (syn. Fusarium subglutinans f. sp. pini) from two pitch canker damaged sites in Jeju Island, South Korea. Initial symptoms of needle damages were visible on most of the seedlings at 18 days after inoculation. The 20 tested isolates were not significantly different in virulence, based on lesion lengths at the site of inoculation (P = 0.217). The most virulent isolate FT-7 showed the longest lesion length. Some seedlings began to die 46 days after inoculation. All seedlings were dead by 68 days after inoculation except two seedlings inoculated with each of isolates FS-2 and FS-13, respectively. Using the FT-7, 38-year-old 11 P. × rigitaeda trees, which were survived from a seed orchard severely damaged by pitch canker, were inoculated on branches in the seed orchard in Jeju Island to assess differences in susceptibility to pitch canker. The 11 trees differed significantly (P < 0.001) in susceptibility to F. circinatum based on average lesion lengths measured 56 days after inoculation. It is possible that induced resistance contributed to their capacity to limit lesion development. The susceptibility of natural selection P. × rigitaeda trees are more likely affected by interaction with F. circinatum rather than environmental conditions.

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“…Se caracteriza por generar coloraciones en las acículas que van desde un color amarillo hasta rojizo (Fig. 5), hasta provocar su caída (puntisecado); en el eje central del árbol se generan chancros exudantes de resina, de ahí su nombre común, estos síntomas también se ven reflejados en las ramas primarias y secundarias, con menor incidencia en las terciarias (Aegerter, Gordon, Storer, & Wood, 2003;D. Bezos et al, 2017).…”

Section: Sintomatologíaunclassified

Chancro Resinoso Del Pino (Fusarium Circinatum) Historia, Evolución, Dispersión Y Estrategias De Manejo

Flores-Pacheco¹

2017

Nexo Revista Científica

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RESUMENLa enfermedad denominada con el nombre de Chancro Resinoso del Pino es causada por el hongo ascomicete Fusarium circinatum Nirenberg et O'Donnell (teleomorfo= Gibberella circinata). Afecta numerosas especies de coníferas y a la fecha tiene presencia en todos los continentes del mundo, a excepción de la Antártida. Debido a las variaciones climatológicas y ambientales a nivel global que han favorecido el rango biológico de dispersión de la enfermedad, sumado al comercio internacional de madera y sus derivados con medidas cuarentenarias insuficientes, actualmente el hongo amenaza con expandirse a zonas libres de la infección. En las zonas donde ya se ha confirmado la presencia de la enfermedad se reportan importantes pérdidas económicas en viveros, semilleros forestales, plantaciones silvestres y comerciales de distintas especies de coníferas. No menos importante pérdida ecosistémica causada por la inestabilidad de los bosques y nichos ecológicos altamente sensibles a las variaciones florísticas. Actualmente es considerada la patología más importante a nivel mundial de las coníferas, tanto silvestres como comerciales, y no posee tratamiento curativo por lo que los esfuerzos están centrados en el tratamiento preventivo. Dentro del ámbito científico destacan las investigaciones en resistencia genética del hospedante y el uso de controladores biológicos que prometan resultados significativos.Palabras claves: Sanidad forestal; Biocontrol; Selección y Mejora genética; Epidemiología; Fisiología del estrés en plantas.

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The dynamics of an introduced pathogen in a native Monterey pine (Pinus radiata) forest

Cited by 39 publications

References 8 publications

Structure and development of pitch canker infected Monterey pine stands at Año Nuevo, California

Structure and development of pitch canker infected Monterey pine stands at Año Nuevo, California

Assessment of Pathogenic Variation against Pitch Canker Pathogen, Fusarium circinatum in Pinus thunbergii and Responses of Natural Selection Pinus × rigitaeda to Branch Inoculation in a Seed Orchard

Chancro Resinoso Del Pino (Fusarium Circinatum) Historia, Evolución, Dispersión Y Estrategias De Manejo

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