Sure, here’s an article on information regarding control of sheath blight in rice:
Rice is one of the most important crops in the world, and sheath blight is a major disease that affects its yield and quality. Sheath blight is caused by the fungus Rhizoctonia solani, which attacks the leaves, stems, and sheaths of the rice plant, leading to lesions and eventually plant death. The disease is most prevalent in warm and humid regions with heavy rainfall.
To control sheath blight in rice, there are several approaches that farmers can take. These include cultural practices, chemical control, and the use of resistant varieties.
Cultural practices:
One of the most effective ways to control sheath blight is through good cultural practices. These practices include:
1. Crop rotation: Growing crops other than rice in the same area can help reduce the buildup of disease spores in the soil.
2. Irrigation management: Avoiding over-watering and maintaining a well-drained field can help reduce the incidence of sheath blight.
3. Fertilizer management: Proper fertilization can help promote healthy growth and reduce the susceptibility of rice plants to disease.
4. Timely planting: Planting rice at the right time can help reduce the risk of disease development.
Chemical control:
In addition to cultural practices, chemical control can also be used to manage sheath blight. Fungicides such as azoxystrobin, propiconazole, and trifloxystrobin can be used to control the disease. However, it is important to follow the manufacturer’s recommendations and to use fungicides in a safe and responsible manner.
Resistance:
Finally, the use of resistant varieties is another way to control sheath blight in rice. There are several varieties of rice available that have been bred for resistance to sheath blight, such as TDK1 and IR65482-4R-136-2. By selecting resistant varieties, farmers can reduce the risk of disease and minimize the need for chemical control measures.
In conclusion, sheath blight is a serious disease that can significantly impact rice yield and quality. However, by following good cultural practices, using chemical control measures responsibly, and selecting resistant varieties, farmers can effectively manage the disease and ensure a healthy crop.