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1964年,是和县棉花紅叶茎枯病大发生的一年。全县植棉十一万亩,絕大部分是早播的春棉,苗期生长旺盛,伏前桃結得較多;但在7、8月間由于长期干旱,“大暑”前后局部棉田內紅叶茎枯病已有点片发生,8月上旬蔓延成災,大面积棉田受害,及至8月中旬病情发展达到了頂峰,成片棉田呈現枯紅,9月上旬才終止扩展,严重地影响产量。这种病害在过去干旱年份也曾发現,只是因为点片发生沒有引起人們注意。1964年大发生,經中国农业科学院江苏分院鉴定,确認为紅叶茎枯病。現将該病的发生情况經初步调查整理如下。
In 1964, it was a big year for cotton leaf blight in Hexian County. The county 110000 acres of cotton, most of the early spring cotton, vigorous growth at the seedling, peach before the volts more; but in July and August due to long-term drought, “big summer” before and after the local cotton leaves Stem blight has been a bit of a film occurred in early August spread disaster, a large area of cotton victims, and in mid-August the disease reached its peak development, into a piece of cotton fields showed reddish, only to terminate in early September, seriously affecting the yield. The disease was also found in the dry years of the past, only because spotting did not attract any attention. Occurred in 1964, the Chinese Academy of Agricultural Sciences, Jiangsu Branch identification, identified as red stem blight. Now the incidence of the disease after the initial investigation arranged as follows.