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根据当前各地病虫发生动态和历年资料分析,一九七三年我省主要作物病虫发生的总趋势是:稻瘟等病害的发生将偏重,稻螟等虫害在大部分地区也将偏重。由于农作物病虫害发生是由多种因素决定的,即使目前病虫源较少的地区,在适宜的气候环境条件下,经几代繁演,就能造成严重损失。因此,对今年的病虫防治必须百倍警惕,认真对待,才能确保农业丰收,夺取全省粮食上《纲要》。稻螟今年水稻三化螟的发生特点是发生期早、虫源田面积大、大部分地区发生量大。由于去冬今春气候暖和,三化螟蛾高峯期预计普遍提早七天左右。据各地测报,平和、
According to the prevalence of pests and diseases and the historical data analysis over the years, the general trend of major crop pests and diseases in our province in 1973 is that the occurrence of diseases such as rice blast will be more serious and the pests such as rice borers will also be heavier in most areas. Since the occurrence of crop pests and diseases is determined by a variety of factors, even where the current source of pest and diseases is few, severe climatic losses can occur after several generations of performance under suitable climatic and environmental conditions. Therefore, this year’s pest control must be treated with vigilance and taken seriously so as to ensure the harvest of agriculture and seize the “outline” of the province’s food. Rice borer Rice borer this year, the occurrence of the characteristics of the occurrence of early stage, the source area of insect, large areas occur in large quantities. Due to the warm weather last winter and spring, the three moth moths are expected to peak about seven days early. According to around the newspaper, peace,