The symptoms are also called bacterial heart rot. At the seedling stage, brown spots appear on the leaves or leaf sheaths, and after the extension, they appear as purple-brown long strips, sometimes as long as the leaves, and the edges are clear. The diseased seedlings withered or the diseased leaves fell off and the plants were short. In the adult stage, the disease begins with the midrib at the base of the leaf. The initial water is yellowish-white, and the posterior vein expands up to the tip of the leaf and forms a yellowish-brown to dark-brown long stripe at the base of the leaf sheath. The diseased tissue is brittle and easily broken. The whole leaf curls to death. The leaf sheaths were irregularly stained, became yellowish brown, and eventually rotted. The onset of heart and leaf, can not be extracted, died in the heart palpitations, pull out a rancid odor, squeezed milk from hand to light yellow bacteria overflow. In the booting stage, when a person suffers from a panicle blast, the panicle wilts, or some spikes and necks lengthen, the spikelet stems are light brown, and the deformity is deformed, and the grain is browned. The pathogen Pseudomona avenae Manns called Pseudomonas alba (Phytophthora infestans) belonging to the genus Pseudomonas. After 1978 it was renamed P.syringae pv. panici (Elliott) Young et al. Single cells short rod-shaped cells, both ends blunt, size 1.5-2.50.5-0.8 (μm), 1-5 polar flagella, mostly 1-2, no spores, no capsule, gram Negative staining, colony round on the broth agar plate medium, dirt uplift, does not produce brown pigment and fluorescein. Transmission routes and disease conditions winter over diseased or diseased seeds. Pathogens spread through water and storms, invade rice seedlings from wounds or natural orifices, especially when seedlings are injured or flooded. High temperature, high humidity and cloudy rain are beneficial to the disease. Partial application of nitrogen fertilizer, heavy onset. High-stem varieties are more resistant to disease than dwarf varieties. Prevention methods (1) Establish a reasonable drainage and irrigation system to prevent flooding of paddy fields and timely drainage. (2) Increase the application of organic fertilizers, reasonable application of nitrogen, phosphorus, and potassium fertilizers to enhance plant resistance to disease. For other methods, see Bacterial Brown Spots in Rice. Spicy Seasoning,Tofu Seasoning,Cooking Seasoning,Chicken Seasoning Ningxia Ningyang Halal Food Co., Ltd. , https://www.ningyangfood.com