Specific drug for rice bacterial blight

Rice bacterial blight (Xanthomonas oryzae) is a major disease of rice, which affects the yield of rice very much. What are the specific drugs for rice bacterial blight?

I. specific drugs for rice bacterial blight

Rice bacterial blight can use specific drugs such as zinc thiazole, thiamidone, thiazol copper, basic copper sulfate, streptomycin, leaf fumazole, thiasen copper, copper succinate, mesophytin, octylamine acetate and so on.

Drug control was used immediately in the disease center in the paddy field, and in the perennial disease-prone areas after typhoon and rainstorm.

2. What is rice bacterial blight

Rice bacterial blight is a bacterial disease, the pathogen is Xanthomonas oryzae, the pathogen mainly harms leaves, and its symptoms include leaf margin type, acute type, wilting type, midvein type, yellowing type and so on.

The leaf margin type is the most common, with dark green short linear spots at the leaf edge or leaf tip at first, and then long gray-white spots extending upward and below along both sides of the leaf margin or midrib, with obvious irregular wavy lines on the edge.

The acute type of diseased leaves are bluish gray or dark green, lose water rapidly, curl inward and show wilt shape, which is generally limited to the upper leaves and does not spread to the whole plant.

Withered type, also known as withered heart type, heart leaves at the beginning of the loss of water, gradually yellow and withered, other leaves still remain green.

In the midvein type, the middle part of the leaf midvein showed a yellowish strip at first, and then expanded into a withered yellow strip from the leaf tip to the leaf sheath. In the yellowing type, the heart leaves do not die at the beginning of the disease, only irregular chlorotic spots can be seen, and then enlarge into large withered yellow spots, and sometimes small dark green spots appear at the base of the diseased leaves.

Bacterial blight spot in the air is moist, before the morning dew is dry, you can see honey yellow viscous glue discharge, called "bacterial pus", in which there are a large number of bacteria, which become yellowish-white roe-like particles adhered to rice leaves after drying. If this phenomenon can be detected in the field, it can be identified as bacterial blight. Rice bacterial blight is easy to be prevalent when the temperature is 2530 ℃, the air relative humidity is more than 85%, the weather is rainy, the sunshine is insufficient, and the wind is often strong.

Only by doing a good job of prevention and control measures, can there be no damage to bacteria, but also to do a good job in paddy field management, so that plants have better disease resistance.