Rice Sheath Blight

Disease

Rice Sheath Blight

Rhizoctonia solani

fungi

In a Nutshell

    Oval, green to grey water-soaked lesions on stalks (sheaths) near the water lineIrregular grey to white lesions with brown margins appear on leaves and stalks

Hosts: %1$s

· Rice

Symptoms

Initial symptoms of the disease are lesions on stalks (sheaths) near the water line. These lesions are oval, greenish-grey, 1-3 cm long and water-soaked. These lesions grow irregularly and turn grey to white with brown margins. As the disease progresses, the upper parts of the plant are infected. On these parts, rapidly growing lesions appear and the whole leaf brightens. This can result in the death of the leaf and the whole plant. Furthermore, fungal pustules form on the plant surface.

Trigger

Optimal conditions for Rice Sheath Blight are high temperatures between 28 and 32°C, high levels of nitrogen fertilizer and a high relative humidity of 85-100%. Especially during rainy season, the risk of infection and spreading of the disease is high. Close canopy is favoring humid conditions and contact. The fungus survives in the soil for several years as a sclerotium. It floats to the surface when sites are flooded. Once in contact with a rice plant, the fungus enters the leaf sheath.

Biological Control

Sorry, we don't know of any alternative treatment against Rhizoctonia solani . Please get in touch with us in case you know of something that might help to fight this disease. Looking forward hearing from you.

Chemical Control

To prevent an infection, Carbendazim 500 g/ha can be sprayed. Fungicides containing Strobilurin Propiconazole, Propiconazole + Strobilurin or Xemium can be used to control the disease.

Preventive Measures

    Ensure balanced fertilizationAvoid excessive nitrogen fertilizationControl host weedsEnsure good drainageKeep sufficient space between plantsAvoid early planting




Features

Regional Weather

Get detailed forecast and actual weather data.

Plantix offers detailed weather information on the following issues:

Precipitation

Humidity

Air Pressure

Temperature

Wind speed

Plantix Community

Get in touch with experts around the world.

Post your questions

You can post your questions and pictures and get feedback from other farmers or gardeners. Plantix' experts will answer your questions related to plant diseases and pests.

MyCommunity

Exchange with Plantix users around you, in your language and related to the crops you grow.

Global Community

Connect to farmers, gardeners, experts and interested people around the world that discuss plant diseases, remedies and best practice for sustainable farming.

AI-Driven Disease Detection

Instant diagnostics and solutions based on your picture

Image Recognition

Plantix analyzes your picture within a few seconds and gives you instant feedback on your plant problem.

Customized Management Options

On top of the detection result, Plantix offers you a detailed description of possible solutions - both biological and conventional.

Preventive measures

Plantix offers information on preventive measures to protect your crop from the next attack.