Symptoms are also called bacterial streak disease. The main damage leaves and sheaths can also occur in other parts. The lesions are light brown or reddish-brown, strip-like, spreading along the veins.
Pathogen Pseudomonas striafaciens (Elliott) Starr et Burkh. =Pseudomonas avenaeManns said Pseudomonas novae is a bacterium. Rod-shaped, size 1.80.6 (um), solitary, twin or chained, with 1-2 poles of polar flagella. Gram-negative staining. Arousal. The broth is a white, creamy, round, bumpy surface with a smooth, glossy surface and a pellicle in the mash. KB colonies were colony white and did not produce fluorescence. Can use glucose, galactose, glycerin to produce acid but not produce gas. Lactose, maltose, and sucrose cannot be used. Growth temperature 30-36 Â°C, the highest 42 Â°C, the lowest 5 Â°C, lethal temperature 55-56 Â°C.
Transmission routes and disease conditions The pathogens overwinter in the soil with the diseased body. In the rainy season of the following year, invasion from plant wounds or stomata. The high temperature and humidity of the rainy season have taken place and expanded. Low-lying, poor drainage, partial application of nitrogen fertilizers are prone to disease.
Control methods (1) Breeding resistant varieties. (2) Strengthen field management and timely drainage after rain to prevent moisture retention; adopt formula fertilization technology to improve the host disease resistance. (3) If necessary, spray 14% solution of ammonia-copper water 300 times or 47% Garethon WP 700-800 times and 12% green milk-cream EC 600 times during the initial stage of disease.
Sensory Cortex,Occipital Cortex,The Frontal Cortex,Periamygdaloid Cortex
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