What is the scientific name of sheath rot?
What is the scientific name of sheath rot?
Sarocladium oryzae (Sawada) is a plant pathogen causing the sheath rot disease of rice and bamboo blight in Asia.
What is Udbatta disease?
Symptoms. A white mycelial mat ties panicle branches together so that panicle emerge as single, straight, dirty coloured, cylindrical rods much resembling an agarbatti or udbattta, hence the name. White mycelium and conidia form narrow stripes on the flag leaves along the veins before the panicles emerge.
What is the causal organism of sheath rot of rice?
Rice sheath rot is a disease complex that can be caused by various fungal and bacterial pathogens. Major pathogens associated with rice sheath rot are fungi such as Sarocladium oryzae and Fusarium sp. belonging to the Fusarium fujikuroi complex and the bacterial pathogen Pseudomonas fuscovaginae.
What is sheath blight disease?
Rice sheath blight is one of the most economically significant rice diseases worldwide. This disease causes significant grain yield and quality losses. Yield losses of up to 50% have been reported under most conducive environments. Sheath blight is a soilborne disease caused by the fungus Rhizoctonia solani AG1-IA.
What is brown spot of rice?
Brown spot is caused by the fungus Cochliobolus miyabeanus. Also called Helminthosporium leaf spot, it is one of the most prevalent rice diseases in Louisiana. When C. miyabeanus attacks the rice plants at emergence, the resulting seedling blight causes sparse or inadequate stands and weakened plants (Figure 1).
Is downy mildew a bacteria?
Downy mildew is a type of oomycetes or water mold. Once considered a fungal disease, it is now classified in the family Peronosporaceae. There are thousands of different types of water molds, most of which are called downy mildew. Most specialize in a particular species or a group of plants.
How do you control the sheath blight of rice?
Chemical methods
- Control of sheath blight has been mainly through the use of foliar fungicides.
- Carbendazim (1 g/lit), Propiconazole (1ml/lit) may be applied.
- Spraying of infected plants with fungicides, such as Benomyl and Iprodione, and antibiotics, such as Validamycin and Polyoxin, is effective against the disease.
What is powdery mildew?
powdery mildew, plant disease of worldwide occurrence that causes a powdery growth on the surface of leaves, buds, young shoots, fruits, and flowers. Powdery mildew is caused by many specialized races of fungal species in the genera Erysiphe, Microsphaera, Phyllactinia, Podosphaera, Sphaerotheca, and Uncinula.
What is the scientific name of brown spot?
Cochliobolus miyabeanus (formerly known as Helminthosporium oryzae) is a fungus that causes brown spot disease in rice. Cochliobolus miyabeanus. Symptoms of Cochliobolus miyabeanus on rice.
What fungus causes Bengal famine?
Though administrative failures were immediately responsible for this human suffering, the principal cause of the short crop supply in 1943 was the epidemic of brown spot disease which attacked the rice crop in Bengal in 1942 [1].
What is the scientific name for downy mildew?
Peronospora sparsa (downy mildew)
What is the scientific name of powdery mildew?
Golovinomyces orontii (powdery mildew)
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