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棉花红、黄叶枯病是棉花中、后期的一种生理病害。瑞昌县从1956年开始点片发生,到1960年大面积发生。全县种植七万亩棉花,文化大革命前每年发病面积达七、八千亩,每年损失皮棉二十一到二十五万斤。文化大革命后加强了防治,发病面积大量减少。1972年全县种植八万亩棉花,发病面积三千多亩。为了摸索此病发生规律和防治措施,我们在重点产棉和发病地区,进行了多年调查和试验。现将结果整理如下:
Cotton red, yellow leaf blight is a kind of physiological disease in the late stage of cotton. Ruichang County from 1956 began filming occurred, to a large area in 1960. The county planted 70,000 acres of cotton, before the Cultural Revolution, the annual incidence of up to seven or eight thousand acres, annual loss of lint cotton twenty-one hundred and fifty thousand pounds. After the Cultural Revolution to strengthen prevention and control, a substantial reduction in the incidence of area. In 1972 the county planted 80,000 acres of cotton, the incidence of more than 3000 acres. In order to explore the occurrence of the disease and prevention and control measures, we focus on cotton and disease areas, for many years of investigation and testing. The results are now organized as follows: