杂菌污染是食用菌生产中经常发生的问题。一般来说,在母种斜面试管培育中发生较少,而在原种、栽培种以及大面积生产上发生较多。特别在夏季,由于杂菌污染常造成大批报废或被迫停产。几年来,在与杂菌污染斗争中,我们有以下几点体会。一、科学使用优良菌种近20年来,我国农村微生物利用几起几落。菌种长期无限制地传代,导致其丧失原有 Bacteria contamination is a frequent problem in edible mushroom production. In general, there are fewer occurrences in the mother slant tube culture, but more in the original species, cultivars and large-area production. Especially in summer, often due to bacterial contamination caused a large number of scrapped or forced to stop production. Over the past few years, in the fight against bacteria contamination, we have the following experience. First, the scientific use of fine strains In the past 20 years, the use of microbes in rural areas in our country from time to time. Long-term unlimited passage of bacteria, resulting in its loss of the original