Rice sheath blight, also known as rice feet blue. It is one of the major diseases in rice production in our district. The disease has been severe in our district over the years. Severe occurrence can cause partial crop failure.
The main symptoms of the disease are: from the seedling stage to the panicle stage. The diseased leaf sheath produces dark greenish-green water-soaked, fuzzy patches on the near-surface water surface. It gradually expands into an oval or moire pattern, and is grayish green or gray-brown in the middle. In severe cases, several lesions merged to form large lesions, irregularly shaped cloud spots, often causing yellow leaves and dead leaves. The ear and neck victims were initially stained green, and later became gray and brown. They often failed to head the ear, and the heading valleys More, the weight of a thousand grains dropped.
I stationed recently in Wuli, Hengkou, Datong, Jianmin, Zhangtan and other towns in the main rice production areas in our district. Most of the rice fields have reached the standard of drying field, and some of them have too many nitrogen fertilizers, and some of them are cold. The disease has already occurred.
In view of the above situation, it is recommended that the majority of farmers timely retreat into the fields for all fields, sun cracked to the field, the foot does not fall, the leaf color fades, and at the same time, to the already affected fields, 5% Jinggangmycin 10 grams per mu. Or use 45% tricyclazole 70 grams of water to spray 120 pounds.
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