【摘 要】
：
棉铃病害在我国南北方棉区均有不同程度的发生与危害,局部地区铃病还相当严重。例如四川一般年份烂铃率为20～30%,重病年烂铃率高达40%;辽宁省辽阳、锦州等地区,一般棉田烂铃
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棉铃病害在我国南北方棉区均有不同程度的发生与危害,局部地区铃病还相当严重。例如四川一般年份烂铃率为20～30%,重病年烂铃率高达40%;辽宁省辽阳、锦州等地区,一般棉田烂铃率为5～10%,个别丰产田烂铃率在20%以上;估计全国棉铃因
Cotton boll disease in our northern and southern cotton areas have varying degrees of occurrence and damage, bell disease in some areas is still quite serious. For example, the rate of rotten boll in Sichuan is 20-30% in most years and 40% in severe illnesses. In Liaoyang, Jinzhou and other regions of Liaoning Province, the rate of rotten bolls in general cotton fields is 5% -10%, and that in some high yielding fields is more than 20% Estimate the national cotton boll
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