What is ratoon stunting?
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 in sugarcane?
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 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.
How to manage ratoon stunting?
Mechanical method:
- 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.
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 pineapple disease in sugarcane?
Also commonly known as pineapple sett rot, pineapple disease is a very significant fungal disease of sugarcane, occurring in all sugarcane growing regions of Australia. It is the main disease which affects the germination of buds in plant material.
Is the device used to determine the bacterium that causes sugarcane ratoon stunt?
The SRA RSD laboratory tests approximately 30,000 samples each year using EB-ELISA for the Australian sugarcane industry. A polymerase chain reaction (PCR) test is available for research purposes. This powerful test can detect as few as 1-10 bacteria.
What prevents cane formation in sugarcane?
| Sugarcane grassy shoot disease | |
|---|---|
| Typical symptoms of Sugarcane Grassy Shoot (SCGS) disease | |
| Common names | SCGS, Sugarcane grassy shoot disease; GSD, Grassy Shoot disease |
| Causal agents | ‘Candidatus Phytoplasma sacchari’ |
| Hosts | Sugarcane (Saccharum officinarum L.) |
Which of these is a viral disease of sugarcane?
Viral Diseases of Sugarcane
| Sl.No | Disease Causal organism |
|---|---|
| 1. | Yellow leaf disease: Sugarcane yellow leaf virus (SCYLV) / Sugarcane yellow leaf phytoplasma (SCYP) |
| 2. | Sugarcane mosaic:Sugarcane mosaic virus (SCMV) / Sugarcane streak mosaic virus (SCSMV) |
| 3. | Leaf Fleck |
How can sugarcane disease be controlled?
Sugarcane smut can be managed effectively if resistant cultivars are planted (9). Other control measures that are used in conjunction with resistant cultivars are hot-water treatment and fungicide application to seed-cane (stalk cuttings), and rogueing of infested stools or plow out of infested crops (9).
Which pathogen causes red rot disease in sugarcane?
Red rot disease is caused by the fungus Glomerella tucumanensis. An older name, Colletotrichum falcatum, is still preferred by some pathologists.