Brown Spot of Rice

Disease

Brown Spot of Rice

Cochliobolus miyabeanus

fungi

In a Nutshell

    Large, brown necrotic spots with grey to white centerYellow margins around the spotLeaves turn yellow and die

Hosts: %1$s

· Rice

Symptoms

Large brown spots with a grey to white center appear on the leaves. The spots are surrounded by a yellow margin. As the disease progresses, whole leaves can turn yellow and die off. Brown Spot disease causes quantity and quality losses in the rice yield.

Trigger

High humidity (86-100%) and relatively high temperatures (16-36°C) are favorable for the fungi. The pathogen is transmitted from plant to plant via air or through infected seeds. Therefore, the main sources of the dissemination include infected rice debris, seeds or weeds. The disease often occurs in unflooded fields with a lack of nutrients.

Biological Control

To be sure that the seeds are not contaminated, bathe them in hot water (53 - 54°C) for 10 to 12 minutes. To improve the results, place the seeds for 8 hours in cold water before the hot water treatment.

Chemical Control

Treat seeds with fungicides containing Iprodione, Propiconazole, Azoxystrobin, Trifloxystrobin or Carbendazim.

Preventive Measures

    Ensure balanced nutrient supplyPlant resistant varietiesEnsure disease-free seeds




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.