- Worldwide distribution. On sugarcane, maize and sorghum, crop relatives and wild species. Important fungal disease.
- Infections through nodes and wounds. Large red external patches, and internal rots with white spots at right angles to stem. Leaves yellow, dry and die.
- Spread in setts, and by water-splashed spores.
- Cultural control: setts only from healthy fields; avoid planting in dry or wet times; treat setts in hot water (50°C for 2 hours); avoid soils that waterlog; avoid overlapping crops; tolerant varieties; collect trash and burn after harvest.
- Chemical control: none recommended; not an economic option.
Pacific Pests, Pathogens, Weeds & Pesticides
Sugarcane red rot (221)
Sugarcane red rot
Glomerella tucumanensis; different strains are reported that vary in their ability to cause disease. The fungus is also known as Colletotrichum fulcatum; this produces spores without going through a sexual process.
AUTHOR Grahame Jackson
Information (and Photos 1&2) CABI (2014) Glomerella tucumanensis (red rot of sugarcane) Crop Protection Compendium. (https://www.cabi.org/cpc/datasheet/25361). Photo 3 Kohler F, et al. (1997) Diseases of cultivated crops in Pacific Island countries. South Pacific Commission. Pirie Printers Pty Limited, Canberra, Australia.
Produced with support from the Australian Centre for International Agricultural Research under project PC/2010/090: Strengthening integrated crop management research in the Pacific Islands in support of sustainable intensification of high-value crop production, implemented by the University of Queensland and the Secretariat of the Pacific Community.