Control technology of Chinese cabbage virus disease
Cabbage is generally planted from the end of July to the beginning of August. At this time, it is in a high temperature stage. The high temperature is conducive to the spread and spread of the aphids that spread the virus, but it is not conducive to the growth of the seedlings. If the management is not good, the virus disease can easily occur seriously. Once pests and diseases occur in cabbage, it will have a huge impact on the profit of cabbage cultivation. Today, Hui Nongwang Xiaobian came to tell you about the prevention and control technology of Chinese cabbage virus disease. The pathogenesis of Chinese cabbage virus disease 1. Infectious damage of turnip mosaic virus, cucumber mosaic virus and tobacco mosaic virus. Turnip mosaic virus and cucumber mosaic virus can be infected by aphids and sap, tobacco mosaic virus aphids can not be transmitted, and the field mainly relies on The juice is in contact with the infection. 2, seedling stage is at high temperature, in addition to unfavorable seedling growth, disease resistance is weak, due to the hot and humid climate, aphids breed quickly, the density of insect population is large, easy to induce viral disease, often causing serious losses. Chinese cabbage virus disease prevention and control technology 1. Agricultural control 1. Before planting, pour enough water to reduce the ground temperature and reduce the occurrence of mites. The recent precipitation is conducive to the sowing and emergence of Chinese cabbage. 2. In the seedling stage of Chinese cabbage, in the case of high temperature and drought, appropriate thin watering, lowering the ground temperature, reducing the occurrence of aphids and improving the resistance of seedlings to disease and stress. 2, control of aphids 1. Use silver-gray or milky-white reflective plastic film to avoid cockroaches, and hang yellow boards in the field to trap winged cockroaches. 2. In the early stage of the occurrence of aphids, spray treatment with imidacloprid, anti-Suiwei and other agents. 3. When aphids and cabbage caterpillars and diamondback moths are mixed, spray treatment with beta-cypermethrin, chrysanthemum emulsifiable concentrate, matrine, azadirachtin, and chuanxiong can be used. 3, prevention and treatment of viral diseases It can be sprayed and controlled by agents such as virus A, bacteriophage, and phytopath. The above is the prevention and control technology of Chinese cabbage virus disease compiled by Huinong. Xiaobian reminds that the recent rainfall and cooling are beneficial to the growth of vegetable seedlings, and have a good inhibitory effect on the occurrence of aphids, but also pay attention to the early growth period of Chinese cabbage. The temperature changes. Collapsible Foot Spa,Foot Spa Bath Massager,Foot Bath Spa Massager,Foot Soak Tub Huaian Mimir Electric Appliance Co., LTD , https://www.footspamachine.com
