Banded leaf and sheath blight of maize - its epidemiology and management
Sharma, R.C.
Banded leaf and sheath blight of maize - its epidemiology and management - Kathmandu (Nepal) NARC|CIMMYT : 2002 - p. 108-112 - Printed
Banded leaf and sheath blight incited by Rhizoctonia solani f.sp. sasakii Exner. has become an increasingly severe and economically important disease of maize in several countries of Asia. The occurrence of the disease has also been reported from other parts of the world. The disease is favoured by hot and humid conditions. Efforts to manage the disease through chemicals have not been successful. Stripping of lower 2-3 sheaths from ground level when the crop is 35-40 days old has been found to check disease spread significantly. Genetic variability for resistance has been found to be limited. Selection of disease resistance has been intensified through a collaborative project initiated by CIMMYT in collaboration with national programmes in the Asian Region. A number of CML and other materials of early and late maturity have been identified having a reasonable level of resistance. In the paper, detailed information on various aspects such as distribution, symptoms and signs, creation of artificial disease epiphytotics, factors affecting disease development and various approaches to disease management has been provided.
English
99933-205-1-X
Asia
Crop yield
Disease control
Disease resistance
Epidemiology
Humid zones
Maize
Rhizoctonia solani
CIMMYT NARC
631.536 / RAJ
Banded leaf and sheath blight of maize - its epidemiology and management - Kathmandu (Nepal) NARC|CIMMYT : 2002 - p. 108-112 - Printed
Banded leaf and sheath blight incited by Rhizoctonia solani f.sp. sasakii Exner. has become an increasingly severe and economically important disease of maize in several countries of Asia. The occurrence of the disease has also been reported from other parts of the world. The disease is favoured by hot and humid conditions. Efforts to manage the disease through chemicals have not been successful. Stripping of lower 2-3 sheaths from ground level when the crop is 35-40 days old has been found to check disease spread significantly. Genetic variability for resistance has been found to be limited. Selection of disease resistance has been intensified through a collaborative project initiated by CIMMYT in collaboration with national programmes in the Asian Region. A number of CML and other materials of early and late maturity have been identified having a reasonable level of resistance. In the paper, detailed information on various aspects such as distribution, symptoms and signs, creation of artificial disease epiphytotics, factors affecting disease development and various approaches to disease management has been provided.
English
99933-205-1-X
Asia
Crop yield
Disease control
Disease resistance
Epidemiology
Humid zones
Maize
Rhizoctonia solani
CIMMYT NARC
631.536 / RAJ