Control of Rice Diseases and insect pests: what is Rice bacterial Brown Stripe?

What is bacterial brown streak disease of rice? What harm does rice bacterial brown streak have? How to control rice bacterial brown streak disease? Please give an introduction The harm of rice bacterial brown streak disease: Infected seedlings in the leaves or leaf sheath appeared brown spots, after the expansion of purple-brown strip spots, sometimes as long as the leaves, clear edges. Sick seedlings wither or diseased leaves fall off, plants are short. At the mature stage, the disease first occurred in the midvein of leaf base, yellow and white in water at the beginning, then extended up to leaf tip along the vein, and formed long brown spots from brown to dark brown at the base of leaf sheath. The diseased tissue was fragile and easy to fold, and then the whole leaf curled and died. The leaf sheath was infected with irregular patches, then turned brown, and finally all rotted. Heart leaf disease, can not be extracted, died in the heart bract, pulled out a rotten smell, with hand extrusion has milky white to pale yellow bacteria overflow. Infected ear bud at booting stage, ear early withered, or some ear neck elongation, spikelets pale brown, curved deformity, grain brown not solid. Control method of rice bacterial brown streak disease: Control method 1: 20% Ye Kuning (Chuanhua 018) WP 6000 times solution spraying; Control method 2: spraying 25% Dikushuang 1500 - 2000 times solution; Control method three: 20% Shacujing (Ye Kujing) wettable powder 300 to 400 times solution (not suitable for use after heading) spraying; Control method 4: spraying 1000 to 1500 times solution of ammonium diethiophos at seedling stage; Note: 2:1 than 500 Bordeaux mixture spray has a certain control effect, the above agents, after the first application of 7 to 10 days after the application of 1, the control effect is better. In order to prevent artificial transmission, it is best to use mobile sprayers for control. Click for more rice cultivation technology Click for more food crop cultivation technology