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众所周知,草莓病毒病在全国各地普遍发生,是造成草莓生长势减退,产量下降的重要原因。作为病毒病的防治对策,近年来各地培养草莓无病毒母株,并用以繁殖无毒苗供应给农民,已取得良好的经济效果.但是,几种重要病毒,如草莓斑驳病毒(SMoV),草莓镶脉病毒(SVBV)、草莓和性黄边病毒(SMYEV)和草莓皱缩病毒(SCrV)均由蚜虫传播,因而无毒苗栽培一年后很容易又被病毒再侵染.这里仅就奈良县自1976年以来,每年向
As we all know, strawberry virus disease occurs in all parts of the country, is caused by strawberry growth potential decline, an important reason for the decline in production. As a countermeasure for the prevention and control of virus diseases, strawberry-free mother strains have been cultivated in various places in recent years and good non-toxic seedlings have been raised and supplied to peasants. However, several important viruses such as strawberry mottle virus (SMoV) The SVBV, SMYEV and SCrV are both transmitted by the aphids, so they can easily be re-infected with the virus a year after the non-toxin seedlings are cultivated. County since 1976, every year to