Symptoms of the whole disease. Leaves produce mosaic symptoms. Poor growth of plants, flowers also produce stripes, malformations. The pathogen is caused by the infection of cucumber mosaic virus (CMV). The host range of CMV is also very wide, and can infect 45 families and 124 species of plants. Resistance is not as strong as TMV, not dry. The lethal temperature was 70°C for 10 minutes, the dilution endpoint was more than 10,000 times, and the virus particles were spherical. The field is mainly transmitted by locusts. Route of infection 1) Cucumber Mosaic Virus (CMV) mainly overwintered perennial perennial weeds and became the primary source of infestation in the coming year. 2) After these wintering weeds have sprouted in the spring, the virus is transmitted to the affected plants through aphids (eg peach aphid, cotton aphid, etc.). In the field, mainly by locust infection, contact infection is not significant. Control methods 1. Eradicate weeds as soon as possible to eliminate the source of infection. 2, timely control of locusts and reduce vectors.
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