一、本年条锈病发生概况 1.1957年是西北条锈病爆发的一年,发生的范围很广,汉中地区、隴南南五县、关中地区铁路沿线各县,北部沿西蘭公路一带由乾县直至长武,商雒地区以及隴东隴南等均普遍受到不同程度的为害。今年的发生也相当严重,但一般较去年晚,范围和为害程度都比去年 First, the annual stripe rust incidence 1. 1957 is the year of the Northwest stripe rust outbreak occurred in a wide range of Hanzhong area, Longnan South five counties, Guanzhong area along the railway line county, along the Xilan Road in the northern part of the county until Changwu, Shanglai area and Longdong, Longdong, etc. are generally subject to varying degrees of damage. The occurrence of this year is also quite serious, but generally more than last year, the scope and degree of harm than last year