What is ratoon stunting disease of sugarcane?
What is ratoon stunting disease of sugarcane?
Ratoon stunting disease (RSD) is one of major sugarcane diseases in Indonesia. The causal agent of the disease is Leifsonia xyli subsp xyli. The pathogen systemically infects xylem vessel. Providing healthy seed cane is the most important management of the disease.
What is ratoon stunting?
Ratoon stunting, also known as ratoon stunting disease (RSD), is considered by many sugarcane pathologists to be the most important disease affecting sugarcane production worldwide, because it can cause 5% to 15% crop yield losses without growers even realizing their fields are infected (Comstock 2002; Davis and Bailey …
How to manage ratoon stunting?
Treat the setts with hot water at 50°C for about 2 hours this gives 100 per cent control. A temperature higher than this would kill the cane and lower temperature than the specified enables the pathogen to survive. Aerated steam therapy eliminates the pathogen from the infected canes.
How to control ratoon stunting disease in sugarcane?
Hot water treatment at 50°C for two hours was the most effective and produced the highest cane yield. However results showed that cane yield at temperature 50°C and 52°C was not significantly different. Therefore any of the two temperatures are hereby recommended for management of ratoon stunting disease of sugarcane.
What causes ratoon stunting disease?
The disease is caused by the bacterium Leifsonia xyli subsp. xyli (Davis et al.) Evtushenko, which infects the xylem (water transport) vessels of the sugarcane plant. The bacterium is rod shaped, typically with a slight bend and measures 0.25-0.5 μm by 1-4 μm.
What is RSD in sugar cane?
Ratoon Stunting Disease (RSD) was first identified as a disease (on a world basis) in Mackay in 1944. Caused by a bacterium that lives in the vascular system of the cane plant, the disease restricts the plant’s ability to carry water – leading to lower yields.
Which pathogen causes red ROF in sugarcane?
Pathogen: Red rot disease is caused by the fungus Glomerella tucumanensis. An older name, Colletotrichum falcatum, is still preferred by some pathologists.
How do you control rust on sugarcane?
Cultural method
- The best means of control for sugarcane rust is to grow resistant varieties Use resistant varieties like Co 91010 (Dhanush), Co 87025 (Kalyani)
- Affected leaves should be remove and burn immediately.
- Sugarcane grown in fields receiving recent applications of mill mud is typically very prone to rust.
