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香蕉束顶病病株叶片边缘轻度黄化,略向上卷曲,叶背或叶片主脉背面和叶柄上出现断断续续的浓绿色条斑,即“青筋”,长短不一,短的不到1mm,长的尤其是叶片主脉和假茎上的可达30-50cm或更长,病后植株长出的叶片一片比一片小,病株外观矮化,呈束顶。病害的潜育期与侵染时蕉株大小和温度高低有关,最短的19d,最长的可达216d,病害由香蕉交脉蚜传播,最短获毒时间30min,最短接毒时间15min,循回期在ld左右,一次获毒后可保毒14d.带病吸芽也能传病。汁液摩擦和土壤不能传播,病健根部自然交接和菟丝了均没有传播成功
Banana bunchy top disease plant leaves slightly yellow edge, slightly curled up, the back of leaves or leaves of the main veins and petiole on the back of intermittent dark green streaks, or “green veins,” varying lengths, shorter than 1mm, Long, especially in the main vein of leaves and pseudostems up to 30-50cm or longer, sick leaves after growing a piece smaller than the appearance of plants dwarfed, was beam top. The latent period of the disease was related to the size and temperature of the plant during infection. The shortest was 19 days and the longest was 216 days. The disease was transmitted by the banana aphid, the shortest time for obtaining the poison was 30 minutes and the shortest receiving time was 15 minutes. Period ld around, once toxic after poisoning 14d. Sucking buds can also be disease. Juice friction and the soil can not be spread, the health of the roots of natural transfer and reeling did not spread successfully