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广西壮族自治区植保总站根据全区农作物种植结构、结合病虫源基数及历史资料综合分析,预报2013年上半年全区农作物主要病虫鼠总体发生程度为中等偏重局部大发生。受暖冬及干旱天气影响,部分虫害发生有偏早偏重可能。具体发生趋势预测如下:1.水稻病虫预计发生程度4(5)级,发生面积4500万亩次。与上年相比,预计稻纵卷叶螟发生偏重,其余主要病虫
Based on the crop planting structure in the region and the combined analysis of the base number of the disease and insect pests and historical data, the Plant Protection Terminology Center of Guangxi Zhuang Autonomous Region predicts that the overall incidence of major pests and diseases of crops in the first half of 2013 will be medium to large. Affected by the warm winter and drought weather, partial pests occurred partial bias may be partial. The specific trend forecast as follows: 1 rice pests and diseases is expected to occur 4 (5) level, occurred in an area of 4500 mu acreage. Compared with the previous year, the rice leaf roller is expected to be more emphasis, the rest of the major pests and diseases