苦瓜病毒病是由黄瓜花叶病毒和西瓜花叶病毒单独或复合侵染引起。一般从症状表现至全株枯黄萎缩仅 15～ 2 0天左右 ,病害蔓延十分迅速。两种病毒均在活体寄主上越冬 ,并可借汁液和蚜虫传染。一般有利于蚜虫繁殖的气候条件 ,对本病的发生扩展也有利。该病能为害整个植株 ,尤以顶 Mum melon virus disease is caused by cucumber mosaic virus and watermelon mosaic virus infection alone or in combination. Symptoms from the general performance of the whole plant withered atrophy only 15 ~ 20 days or so, the disease spread very rapidly. Both viruses overwinter on live hosts and can be infected with juices and aphids. Generally conducive to aphid breeding climatic conditions, the expansion of the disease is also beneficial. The disease can harm the entire plant, especially the top