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RSD, RED ROT AND WILT DISEASE MANAGEMENT
Ratoon stunting and red rot are the two major diseases of sugarcane responsible for yield decline and running out of varieties respectively. While the ratoon stunting disease can be controlled through moist hot air treatment of seed cane, the control of red rot continues to baffle the sugarcane scientists all the world over. Actually red rot is cancer of sugarcane and no effective method for its control is available yet. Most outstanding and popular varieties in India have gone out of cultivation due to this disease in the past. All chemical control measures including use of systemic fungicides have failed to control the disease. However it is possible to contain this disease, or partially control it, if integrated red rot management programme is followed. This program consists of cultivation of resistant varieties, use of new technologies of disease free seed production like polybag and tissue culture, implementation of three tier seed programme. Moist hot air treated breeder seed should be obtained from research stations and foundation and certified seed nurseries raised in the field from this seed. There should be total replacement of seed in the field with the seed thus produced every five years.
RATOON STUNTING DISEASE MOIST HOT AIR TREATMENT UNIT Changing of sugarcane based cropping system to cereal based cropping system for a year i.e. growing of rice and wheat or some other suitable crops in cane fields where red rot incidence is there, can effectively control the disease. Above all, strict field vigilance is absolutely essential to detect the disease in the early stages of its appearance right from April onwards and measures taken in time to control this dreaded disease. Wilt disease is also responsible for running out of certain susceptible varieties to this disease. Varietal resistance is the only way to control the disease. However it has been observed that the incidence of this disease is correlated to damage by insects, root borer and stalk borer. Control of these two insects helps in reducing damage by this disease in susceptible varieties.
RED ROT DISEASE
WILT DISEASE |
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