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玉米是红河州主要粮食作物之一,常年播种面积9.33万hm2以上,是本州山区农民的主要粮食及经济来源。但是,近年来在玉米上发生1种新的病害——玉米灰斑病,该病害来势猛,传播、蔓延速度快。2004年首次在本州屏边县白云乡发生,2005年全州发生面积1800hm2,2006年全州发生面积4666.7hm2。到2007年,全州累计发生面积已达1.85万hm2。虽经采取各种防治措施,到2008年,全
Corn is one of the main cereal crops in Honghe Prefecture. Its perennial planting area is more than 93,300 hm2, which is the main grain and economic source for peasants in this mountain area. However, in recent years, a new disease occurred in maize - Cercospora zea, the disease fierce, spread, spread fast. In 2004 for the first time in Baiyun Township, Pingbian County, the state occurred in 2005, the entire state occurred 1800hm2 area, in 2006 all over the province of 4666.7hm2. By 2007, the cumulative statewide area has reached 18,500 hm2. Although adopted by various prevention and treatment measures, by 2008, all