Diseases of Eucalypts in Paraguay and First Report of Teratosphaeria zuluensis from South America
| Autor: | Jolanda Roux, Fred O. Asiegbu, Ximena Silva |
|---|---|
| Přispěvatelé: | Faculty of Agriculture and Forestry, Department of Forest Sciences, Helsinki Institute of Sustainability Science (HELSUS), Viikki Plant Science Centre (ViPS), Frederick Asiegbu / Principal Investigator, Forest Ecology and Management |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Teratosphaeria PRIMER SETS FOREST HEALTH INSECTS 010603 evolutionary biology 01 natural sciences THREATS law.invention 03 medical and health sciences GENUS law myrtle rust Quarantine Botany medicine Blight Leaf spot Botryosphaeria Teratosphaeria stem canker alien invasive species 030304 developmental biology Canker PATHOGENS 4112 Forestry 0303 health sciences PESTS biology food and beverages Forestry lcsh:QK900-989 15. Life on land biology.organism_classification medicine.disease 3. Good health Calonectria Chrysoporthe canker Threatened species lcsh:Plant ecology TREES Calonectria leaf blight |
| Zdroj: | Forests, Vol 11, Iss 1035, p 1035 (2020) Forests Volume 11 Issue 10 |
| ISSN: | 1999-4907 |
| Popis: | Background and objectives: The global forest economy is threatened by eucalypt pathogens which are often latent or cryptic species that escape common quarantine and detection methods. Plantation forestry using eucalypts is of considerable importance to Paraguay, but knowledge regarding the pests and diseases affecting these plantations is limited. This study identified fungal diseases present in these plantations. Materials and Methods: We surveyed eucalypt plantations in four provinces in Paraguay and collected material from diseased trees for identification of the causal agents. The samples were analyzed using a combination of morphological and molecular methods. Results: Diseases encountered included Botryosphaeria stem canker, Calonectria leaf blight, Chrysoporthe stem canker, myrtle/eucalypt rust, Coniella leaf spot, heartwood rot and Teratosphaeria stem canker. Contrary to expectations, the causal agent of Teratosphaeria stem canker was identified as Teratosphaeria zuluensis (M.J. Wingf., Crous & T.A. Cout.) M.J. Wingf. & Crous and not Teratosphaeria gauchensis (M.-N. Cortinas, Crous & M.J. Wingf.) M.J. Wingf. & Crous, that is commonly documented for the South American region. Conclusions: This study updates the knowledge on forest fungal pathogens in Paraguayan eucalypt plantations and is the first report of T. zuluensis in Paraguay and in South America. |
| Databáze: | OpenAIRE |
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