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1.产地检验在常年发病中心,于小麦返青拔节期进行田间调查,发现矮小、稀疏,下部黄叶较多,种子根和次生根呈灰黑色的植株,带回室内,洗净泥土,将变色的麦根剪成3毫米的小段,放入苯酚二甲苯(1:4)的混合液中或乳酚油(石炭酸10克、乳酸10毫升、甘油20毫升、蒸馏水10毫升)浸泡3～4天,然后透明封片镜检,如发现沿根表纵向生长粟褐色匍匐菌丝,即为全蚀病株。
1. Origin inspection At the annual incidence center, we conducted a field survey during the jointing stage of wheat regreening and found that there are many dwarf and sparse yellow leaves in the lower part of the seedlings. The seed roots and secondary roots are gray-black plants and are taken back to the house. The soil is washed and discolored Cut into three millimeters of short segments, into a mixture of phenol xylene (1: 4) or lactoferrin (10 grams of carbolic acid, lactic acid 10 ml, glycerol 20 ml, distilled water 10 ml) soak 3 to 4 days , And then transparent cover microscopic examination, such as found along the longitudinal growth of the root table creeper silk, that is all eaten strain.