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我省沿江棉区,受季风影响,往往秋雨连绵,棉花铃期病害种类繁多,引起烂桃,何种为害最烈,迄无定论。六十年代前,大多认为炭疽、角斑、红腐、黑果等为主要致病菌原。1979—1982年间,据我们观察,导致烂桃的主要病害为棉铃疫病,尤以多雨年份或地区,疫病流行时为害更重,田间病铃率可达90％以上;其次角斑、炭疽、褐斑等病虽发生较多,但未见直接造成烂桃。红腐、黑果、红粉、曲霉等病害大多在虫害或其他原因造成的伤口上,腐生为害。乙磷铝和保铃制剂1号(简称保铃丰)防治棉铃疫病和烂桃,效果较好,为今后防治烂桃有希望的农药。现将近年来观察情况,简报如下:
Cotton province along the Yangtze River, affected by the monsoon, often autumn rains, cotton boll variety of diseases, causing rotten peach, what is the most harmful, as far as inconclusive. Sixties ago, most think anthrax, Kok, red rot, black fruit as the main pathogens. From 1979 to 1982, we observed that the main disease causing rotted peach was cotton bollworm disease, especially in rainy years or regions. When the epidemic was prevalent, the damage was even more serious, and the ringing rate in the field could reach over 90%. Second, the incidence of spot spots, anthrax, brown Although plaque and other diseases occur more, but no direct result of rotten peach. Red rot, black fruit, pink, aspergillus and other diseases are mostly caused by pests or other wounds, saprophytic damage. Phosphorus and aluminum aluminum and bollworm No. 1 (Bollinger Feng) prevention and control of bollworm blight and rotten peach, the effect is better for future prevention and control of rotten peach Hope of pesticides. Now observe the situation in recent years, the briefing is as follows: