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依据宁夏区、周边省区小麦秋苗病虫发生情况及各区域测报站病虫越冬基数调查情况,结合历史资料和2005年长期天气预报,宁夏农技推广总站对2005年宁夏区农作物重大病虫发生趋势分析如下:1.小麦条锈病:预计在阴湿、半阴湿山区、卫宁灌区中度偏重流行,卫宁以北及干旱山区中度流行。发生面积300万亩左右。2.小麦白粉病:预计全区大部分地区中度流行,局部地区阴湿密度大的田块中度偏重流行。全区发生面积100～150万亩。3.小麦蚜虫:大部分地区中度偏重发生,局部地区大发生,全区发生面积320～400万亩;小麦黄矮病全区中度偏轻流行。
According to the occurrence situation of pests and diseases of autumn seeding of wheat in Ningxia and surrounding provinces and the investigation of pest and disease overwintering base in every region, combined with historical data and long-term weather forecast in 2005, Ningxia Agricultural Technology Extension Station analyzed the major pests and diseases of crops in Ningxia in 2005, Trend analysis is as follows: 1. Wheat stripe rust: It is expected in the wet, semi-humid mountain areas, Wei Ning irrigation moderate emphasis on epidemic, Wei Ning north and a moderate prevalence of arid mountainous areas. Occurred area of 300 mu. 2. Wheat powdery mildew: the region is expected to moderate prevalence in most parts of the area, the density of wet areas in large areas tend to be moderately popular. The area of 100-150 million mu area occurred. 3. Wheat aphid: Moderate emphasis occurred in most areas, large areas occurred in the region occurred in the area of 320 to 400 acres; wheat yellow dwarf epidemic mild partial prevalence.