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根据全省各测报站点对主要农作物病虫越冬基数、结合今年气象条件、种植结构调整态势及各地栽培耕作变化特点,并经过52个地、市(县)测报站、植保站会商分析,预计2000年黑龙江省病虫发生趋势总的为中等至中等偏重发生,发生面积约1.2亿亩次左右。 1.大豆病虫预计大豆病虫害发生趋势为中等偏重发生,其中虫害重于病害,发生面积约4000万亩次。草地螟 1999年草地螟在本省发生
According to the main crop pest and disease overwintering base of each survey station in the province, combined with the meteorological conditions this year, the trend of planting structure adjustment and the characteristics of cultivation and farming in different places, and after 52 prefectural, county (county) measuring stations and plant protection stations, In 2000, the trend of occurrence of pests in Heilongjiang Province was generally moderate to moderately weighted with an area of about 120 million mu times. 1. Soybean diseases and insect pests It is estimated that the occurrence of pests and diseases of soybean occur moderately, with pests heavier than diseases, with an area of about 40 million mu. Meadow borer 1999 Meadow borers occur in the province