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玉米粗缩病及防治技术山东省邹城市植保站孙明海玉米粗缩病，俗称“万年青”，是由灰飞虱传播的一种病毒性病害，在部分玉米产区已成为制约玉米生产的重要障碍。特别是１９９３年，河北、山东、山西等省份发生面积较大，轻者病株率１０％左右，重的地区部分地块病株率高达...
Maize Roughness and Prevention Techniques Zoucheng Plant Protection Station in Shandong Province Sun Minghai Maize Rough, commonly known as “Evergreen” is a viral disease transmitted by Laodelphax striatellus and has become an important control of corn production in some maize producing areas obstacle. Especially in 1993, Hebei, Shandong, Shanxi and other provinces occurred in a larger area, the light of the diseased plants rate of about 10%, heavy part of the block disease rate of up to ...