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病原学研究证明新疆哈密瓜花叶病主要由西瓜花叶病毒2号(WMV-2)、黄瓜花叶病毒(CMV)、南瓜花叶病毒(SqMV)引起,大田发病以 WMV-2为主。研究证明 WMV-2的介体主要为麦二叉蚜、苜蓿蚜、桃蚜、伞形蚜,其次是麦长管蚜、叶虫甲。CMV 的介体有桃蚜、苜蓿蚜、伞形蚜。SqMV 的介体为叶(虫甲)。哈密瓜在田间感染病毒的时间与上述蚜虫开始迁飞的时间有相关性。有翅蚜的发生、消长与田间发病成正相关。6月份降雨量与病害发生,有翅蚜消长成反相关。据五家渠、昌吉等地区调查,WMV-2的自然寄主有蚕豆、豌豆、西葫芦,它们的发病时间比甜瓜早。
Etiological studies have proved that Xinjiang Hami melon mosaic disease mainly caused by watermelon mosaic virus 2 (WMV-2), cucumber mosaic virus (CMV), pumpkin mosaic virus (SqMV) caused by field-onset WMV-2-based. Studies have shown that the mediators of WMV-2 are mainly wheat aphid, alfalfa aphid, green peach aphid, umbrella aphid, followed by wheat aphid, leaf worm A. CMV mediator peach aphid, alfalfa aphid, umbrella aphids. The mediator of SqMV is leaf (insect). Hami melon infected with the virus in the time and the above aphids began to migrate time is relevant. The occurrence, growth and decline of winged aphids are positively correlated with the incidence in the field. The rainfall in June was inversely related to the occurrence of disease and the decline and growth of winged aphids. According to Wujiaqu, Changji and other areas survey, WMV-2 natural hosts have beans, peas, zucchini, their onset earlier than the melon.