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河北省植保植检站根据病虫调查基数,结合农业种植结构、品种抗性、气象预报等因子,并结合近年来病虫害发生特点综合分析,预计2014年上半年河北省农业主要有害生物总体将偏重发生。具体发生趋势预报如下:一、小麦病虫小麦病虫总体偏重发生,其中:麦蚜大发生,发生面积3560万亩;小麦吸浆虫总体偏重发生,局部大发生,预计发生面积1300万亩;小麦条锈病如果4、5月份外地菌源量大,气候适宜,在中南部麦区有中等流行的趋势;小麦赤霉病如果中南部麦区在小麦扬花期遇连阴雨天气,将偏重发生;小麦纹枯病中等发生;根腐病局部偏重发生;麦蜘蛛、小麦白粉病中等发生,局部偏重发生。二、玉米病虫蓟马在春玉米及早播夏玉米田将偏重发生;二代粘虫、小地老虎在春玉米区仍有局部重发生的风险;一
Based on the survey of insect pests and diseases, combined with the factors of agricultural planting structure, variety resistance and weather forecast, combined with the characteristics of pests and diseases in recent years, Hebei Plant Protection and Inspection Station expects that the main agricultural pests in Hebei Province will generally be heavy in the first half of 2014 occur. The specific occurrence trends are as follows: First, the overall incidence of pests and diseases of wheat pests and diseases in general, including: wheat aphid occurred, the occurrence of an area of 3560 mu; inhalation of wheat general emphasis on occurrence, local occurrence occurred, the expected area of 1300 mu; Rust in April and May if the foreign source of large, suitable climate, in central and southern wheat has a moderate prevalence of wheat; wheat scab in the south if the wheat flowering in the wheat flowering occasional rainy weather will occur with emphasis; wheat withered Disease occurs moderately; partial root rot occurs; wheat spiders, wheat powdery mildew occurs moderately, partial emphasis occurs. Second, corn pests thrips in the early spring corn and sowing corn fields will be prevalent; second generation armyworms, small tigers in the spring corn area is still a risk of local recurrence; one