1. PaDIL Species Factsheet Scientific Name: Bipolaris sacchari (Breda de Haan) Subram. (Ascomycota: Dothideomycetes: Pleosporales: Pleosporaceae) Common Name Bipolaris sacchari Live link: http://www.padil.gov.au/maf-border/Pest/Main/142996 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 sacchari(Bipolaris sacchari)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/142996 2.3. Facets Commodity Overview: Field Crops and Pastures Commodity Type: 1 Other Distribution: Afrotropic, Indo-Malaya, Nearctic, Oceania, Palearctic Groups: Fungi & Mushrooms Host Family: Poaceae Pest Status: 1 NZ - Non-regulated species Status: NZ - Exotic 2.4. Other Names Bipolaris sacchari (E.J. Butler) Shoemaker, nomen illeg. Cercospora sacchari Breda de Haan Drechslera sacchari (E.J. Butler) Subram. & B.L. Jain Helminthosporium sacchari E.J. Butler 2.5. Diagnostic Notes **Disease** Eyespot and seedling blight of sugarcane. Longitudinal leaf spots up to 12 × 6 mm, reddish with pale halo, coalescing. Chlorotic streaks may later run from spot towards leaf tip. Lesions can also form on stalks, and fungus may cause a seedling blight, especially under cool conditions. **Morphology** _Conidiophores_ arising singly or in small groups, often from a dark brown to black loose stroma, mid to dark brown, up to 200 µm long, 5–8 µm thick, with one or more distinct conidial scars. _Conidia_ single, straight or slightly curved, cylindrical or narrowly ellipsoidal, 35–95 µm long, 9–17 µm wide, pale to golden brown, smooth, 5–9-distoseptate (mostly 8), distinct basal scar 3–4.5 µm wide. 2.6. References - Ellis, M.B. (1971). _Dematiaceous Hyphomycetes_. Commonwealth Mycological Institute, Kew, Surrey, England, pp. 441–443. - Ellis, M.B. & Holliday, P. (1971). _Drechslera sacchari. CMI Descriptions of Pathogenic Fungi and Bacteria 305_, 1–2. - Sivanesan, A. (1987). Graminicolous species of _Bipolaris, Drechslera, Exserohilum_ and their teleomorphs. _Mycological Papers 158_, 1–261. 3. Diagnostic Images Bipolaris sacchari conidiophores and conidia Bipolaris sacchari conidiophores and conidia Conidiophores & Conidia: E. McKenzie Conidiophores & Conidia: E. McKenzie Landcare Research Landcare Research Bipolaris sacchari conidiophores and conidia Bipolaris sacchari conidiophores and conidia Conidiophores & Conidia: E. McKenzie Conidiophores & Conidia: E. McKenzie Landcare Research Landcare Research Results Generated: Monday, September 27, 2021 .