This PPT includes introduction, symptoms, causal agen and management of sugarcane

1. RED ROT OF SUGARCANE
DR. RAJBIR SINGH
Assistant Professor
Department of Plant Pathology
Gochar Mahavidyalaya, Rampur Maniharan, Saharanpur (UP), India
Affiliated to Ch. Charan Singh University, Meerut (UP), India
Email: rajbir25805@yahoo.com, rajbirsingh2810@gmail.com
Cell No. 91-9456613374

2. Red Rot of Sugarcane
Reported:
• 1893 – by Went from Java
• 1901 - by Barber from Godavari in India
• Butler gave name – red rot
• All sugarcane growing areas
• Epidemic in 1939 – 40 in east UP & Bihar

3. Symptoms:
• Appear after rainy season when pl. growth
stop & sugar formation start
• Third leaf from top start - yellowing
• Later infected cane – shriveled
• Rind shrink
• Cane light in weight & easily broken
• Reddening of pith with clear area (white) running

4. • Pith cavity filled with grayish mycelium
• Juce – bed odour & not set well on boiling
due to conversion of sucrose into glucose
• Low quality sugar- conversion into alcohal
• Minute dot like structure (acervuli) near the
diseased node

10. Pathogen – Colletotrichum falcatum (I. P)
Glomerella tucumanensis (P. S)
• Muddy red color – absorbed by pith – so called red rot
• Pathogen survive in setts / seed canes , infected
stubbles and soil as Chlamydospore
• Disease is soil & seed borne

11. Systemic Position
Kingdom – Mycota/ Fungi
Division – Eumycota
Sub division – Deuteromycotina
Class – Coeleomycetes
Order – Melanconiales
Family – Melanconaceae
Genus – Colletotrichum
Species - falcatum

12. Disease Management
• Disease free setts
• Setts treatment – Carbendazim @ 2.5 gm/lit. of water for 30 minutes
• Hot water treatment – 52° C for 8 hrs
• 54° C for 2 hrs
• Hot air treatment - 54° C for 6 hrs
• Removal of infected stools
• Crop rotation 2-3 yrs
• Dis. Res. Varaties.- Cos -767, Co- 840, Co- 1148, Co- 1158, Bo-32

13. Thank You