1. Padil Species Factsheet Scientific Name: Common Name Image

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1. Padil Species Factsheet Scientific Name: Common Name Image

1. PaDIL Species Factsheet Scientific Name: Bipolaris incurvata (C. Bernard) Alcorn (Ascomycota: Dothideomycetes: Pleosporales: Pleosporaceae) Common Name Bipolaris incurvata Live link: http://www.padil.gov.au/maf-border/Pest/Main/142994 Image Library New Zealand Biosecurity Live link: http://www.padil.gov.au/maf-border/ Partners for New Zealand Biosecurity image library Landcare Research — Manaaki Whenua http://www.landcareresearch.co.nz/ MPI (Ministry for Primary Industries) http://www.biosecurity.govt.nz/ 2. Species Information 2.1. Details Specimen Contact: Eric McKenzie - [email protected] Author: McKenzie, E. Citation: McKenzie, E. (2013) Bipolaris incurvata(Bipolaris incurvata)Updated on 3/19/2014 Available online: PaDIL - http://www.padil.gov.au Image Use: Free for use under the Creative Commons Attribution-NonCommercial 4.0 International (CC BY- NC 4.0) 2.2. URL Live link: http://www.padil.gov.au/maf-border/Pest/Main/142994 2.3. Facets Commodity Overview: Field Crops and Pastures Commodity Type: Coconut Distribution: Afrotropic, Indo-Malaya, Neotropic, Oceania Groups: Fungi & Mushrooms Host Family: Arecaceae Pest Status: 2 NZ - Regulated pest Status: 0 NZ - Unknown 2.4. Other Names Drechslera incurvata (C. Bernard) M.B. Ellis Helminthosporium incurvatum C. Bernard 2.5. Diagnostic Notes **Disease** Leaf spot of young palms. Spots at first small, oval, brown, enlarging to about 15 × 15 mm and becoming pale buff with a broad dark brown margin. Edges of fronds may become necrotic. **Morphology** _Conidiophores_ arising singly or in small groups, pale brown to olivaceous-brown, up to 500 µm long, 7–12 µm thick, with one or more distinct conidial scars. _Conidia_ single, typically slightly curved, navicular or broadly fusiform, 100–150 µm long, 19–22 µm wide, pale straw coloured, smooth, 8–13 distoseptate. 2.6. References - Ellis, M.B. (1971). _Dematiaceous Hyphomycetes_. Commonwealth Mycological Institute, Kew, Surrey, England, pp. 450–451. - Ellis, M.B. & Holliday, P. (1972). _Drechslera incurvata. CMI Descriptions of Pathogenic Fungi and Bacteria 342_, 1–2. - Gerlach, W.W.P. (1988). _Plant Diseases of Western Samoa_. Samoan German Crop Protection Project, Apia, Western Samoa, pp. 80–81. 3. Diagnostic Images Bipolaris incurvata conidia Bipolaris incurvata conidia Conidia: E. McKenzie Landcare Research Conidia: E. McKenzie Landcare Research Bipolaris incurvata leaf spot on coconut Bipolaris incurvata leaf spot on coconut palm palm In Life: E. McKenzie Landcare Research In Life: E. McKenzie Landcare Research Results Generated: Monday, September 27, 2021 .

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