The weather is cloudy and cloudy, and there may be more rainfall in the eastern part of the Ching Ming holiday. The Taito District Agricultural Reform Farm urges farmers to pay attention to preventing rice fever and sheath blight sclerotia.

(The picture is provided by Taito District Agricultural Reform Farm)

[Reporter Chen Xianyi/Taidong Report] Uncertain weather leads to the invasion of diseases and insect pests. Recently, rice fever and sheath blight sclerotia have been detected in Taitung rice. In order to prevent the spread of the epidemic, the Taitung District Agricultural Improvement Farm reminds farmers There may be more rainfall, should pay close attention to prevention.

According to the Taitung Agricultural Reform Center, rice fever has been detected in Taitung rice recently, and a large number of sheath blight sclerotias have also been found in some rice fields in Guanshan and Chishang areas.

Spring is coming, the temperature is getting warmer, and it is often accompanied by fronts moving southward. The cloudy and sunny weather leads to a large temperature difference between morning and evening, which may spread the epidemic.

The Central Meteorological Administration predicts that during the Qingming holiday, there may be more rainfall in the eastern region. In order to avoid the spread of pests and diseases, farmers are urged to pay close attention to prevention.

The Taito District Agricultural Reform Center stated that the occurrence of "rice fever" is mainly related to temperature, rain, and fertilizers. The sudden cold and hot temperatures can easily lead to the weakening of rice resistance. If there is rain or the dew on the leaves stays for a long time in the early morning The water film will promote the pathogenic bacteria to germinate and invade the plants, and outbreaks of epidemics will occur in a short period of time. In addition, too much nitrogen fertilizer in the field will make the plants weak and accelerate the development of the disease.

According to the Taito District Agricultural Reform Farm, once the leaves are infected by pathogenic bacteria, dark green spots will form at the beginning, and then gradually expand into spindle-shaped lesions with sharper ends. Mainly identify the symptoms of the disease. In order to reduce the occurrence of the epidemic, rational fertilization has become the primary focus.

Secondly, the sclerotium drifting in the field water is the main source of primary infection of sheath blight. The sclerotia attaches to the outside of the rice leaf sheath and increases with the growth of the rice. In the middle tillering stage, due to the increase in the number of stems in the rice clusters and the increase in the humidity between the rice clusters, the sclerotia Beginning to germinate and infect the leaf sheaths to cause disease.

For related control issues, please contact the Taitung Field Plant Protection Research Office, or the pest diagnosis service stations in each district.