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一、玉米粗缩病的发生危害玉米粗缩病是由玉米粗缩病毒(MaizeRoughDwarfVirus,简称MRDV)经灰飞虱犤Laodelphaxstriat-sllus(Fallen)犦以持久性方式传播的一种植物病毒病害。此病于1948年首次发生于以色列。我国是于1954年发生于新疆。自1993年以来,在我国北方玉米产区多次发生?
First, the occurrence of maize rough disease Maize rough disease is a maize rough virus (MaizeRoughDwarfVirus, referred to as MRDV) by Laodelphaxstriat-sllus (Fallen) 犦 spread in a persistent manner a plant virus disease. The disease first occurred in Israel in 1948. Our country occurred in 1954 in Xinjiang. Since 1993, corn production in northern China occurred many times?