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2009年番茄黄化曲叶病毒病在北京市首次发生,且给生产造成严重损失,为了解番茄苗期带毒率以便进行综合防控,2010年2～3月在顺义区、大兴区、通州区、平谷区番茄育苗温室采集即将定植及已定植1～2d的番茄幼苗植株进行黄化曲叶病毒分子检测。共检测番茄幼苗样品645株,检出阳性样品226个,番茄幼苗带毒率为35.04%。检测结果表明,被侵染的番茄幼苗不表现明显症状,病毒含量明显低于表现典型症状的成株番茄。根据检测结果,初步预测2010年北京市早春温室番茄黄化曲叶病毒病有可能较大程度发生。
Tomato yellow leaf curl virus disease occurred in Beijing for the first time in 2009, and caused serious losses to production. In order to understand the rate of tomato seedling poisoning in order to carry out comprehensive prevention and control, in February and March 2010 in Shunyi, Daxing and Tongzhou District, Pinggu District, tomato seedling greenhouse about to be colonized and has been planted 1 ~ 2d tomato seedlings of yellow leaf curl virus molecular test. A total of 645 tomato seedlings samples were detected, and 226 positive samples were detected. The tomato virulence rate was 35.04%. The test results showed that the infected tomato seedlings did not show obvious symptoms, the virus content was significantly lower than the performance of typical symptoms of adult tomato. According to the test results, it is preliminarily predicted that tomato yellow leaf curl virus disease may have occurred to a large extent in the greenhouse of early spring in Beijing in 2010.