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根据病虫冬前和早春基数调查,结合农业种植结构、品种抗性、气象预报等因子综合分析,玉米上半年病虫害总体中等发生,其中蓟马在晚播春玉米及早播夏玉米田将偏重发生;二代粘虫在局部区域重发的风险较高;一代玉米螟在北部春玉米区中等发生,局部偏重发生,中南部轻发生;二代棉铃虫在夏玉米区发生普遍,总体中等局部偏重发生,近年有加重趋势;地老虎在春播玉米区呈上升趋势,总体将中等发生;玉米红蜘蛛局部地块中等发生;玉米粗缩病在中南部晚春播或
According to the investigation of pest and disease before winter and early spring, combined with the comprehensive analysis of agricultural planting structure, variety resistance and weather forecast, the pests in the first half year of maize generally occurred moderately, of which the late spring sowing and early sowing of the thrips would preferentially occur ; The second generation of armyworms have a higher risk of recurrence in local areas; the first generation of Ostrinia furnacalis occurs moderately in the northern spring corn area, with partial emphasis occurring and in the middle and southern areas occurring lightly; the second generation cotton bollworm occurs generally in the summer corn area, Occurred in recent years, aggravating the trend; to the spring sowing area of the Tigers are on the rise, the overall will occur moderately; corn spider mites in the local mass occurred; corn sizing disease in southern sowing late spring or