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最近收到四子王旗大井乡一些农户来信反映,他们那里的小麦黑穗病发病率达30%左右,怀疑是用农药“克菌丹”拌种造成的。信中还说,没有用克菌丹拌种的小麦都没有黑穗问题。根据信的内容,首先应肯定用克菌丹拌种不会使小麦得黑穗病。小麦黑穗病主要有腥黑穗病和散黑穗病两种。它们共同症状都出现黑穗,病原菌都是一年一次侵染,均以种子带菌,以后产生黑粉。常用的防治方法是用药剂拌种杀死种子所带的病原菌。
Recently, a letter from some farmers in Dajing Township, Siziwangqi, was reported to have reported a prevalence of wheat smut of 30% or so. Suspected to be caused by seed dressing of pesticide “candelabrum”. The letter also said that there is no black ear problem in wheat that has not been used for the seed dressing with captan. According to the content of the letter, first of all, it should be affirmed that the use of gram bacterium seed dressing will not make wheat smut. There are two main types of smut in wheat: smut and casual smut. They appear black ears common symptoms, pathogenic bacteria are infected once a year, are carried by seed, after the black powder. Commonly used method of prevention and treatment is to kill the seeds with the agent dressing with the pathogen.