The results showed that: Maize Seedlings might be infected by RPV and RMV tow strains of BYDV.The major symptoms were slight-stripe-points on the maize leaf, with few Red leaf symptoms.

• 结果表明：BYDV的RPV(缢管蚜株系)和RMV(缢管长管蚜株系)侵染玉米幼苗，其症状以细条点症为主，很少产生红叶症。