蓝氏前微异螨Microdispus(Premicrodispus)Iambi Kr(?)eczal 隶属蒲螨科、矮蒲螨亚科、微异螨族、微异螨属、前微异螨亚属,体淡黄褐色,长0.210毫米,宽0.105毫米.上海南汇、嘉定、崇明和江苏江阴等地常有发生,对蘑菇菌丝似有专一为害习性,不为害子实体.蘑菇菌丝受害严重时,聚集在覆土表面土粒最高处,远看如同撒了一层黄色药粉。短期内可以毁灭菌床全部菌丝。由于形体微小,早期肉眼不易发现,更增加了人们对它的恐惧心理.许多农药防治均无效,菇农称它为“老牌菌虱”。为了对蓝氏前微异螨进行防治,首先必须了解其为害特征,现将初步观察研究结果报告如下。(一)在蘑菇培养料中的分布在检查蓝氏前微异螨为害的样品中,我们发现剖开草秆(尤其是 Microdispus (Premicrodispus) Microdispus (Premicrodispus) Iambi Kr (?) Eczal is a member of the genus Poinatus, 0.210 mm, 0.105 mm wide.Shanghai Nanhui, Jiading, Chongming and Jiangyin, Jiangsu and other places often occur, mushroom mushrooms seem to have a specific habit of harm, not a harmful entity.Mushroom mycelium serious damage, the accumulation of soil in the soil cover The highest grain, far away like a layer of yellow powder sprinkled. Can destroy all mycelium in the short term. Because of its small size, the early naked eye is not easy to find, but also increase people’s fear of it.Many pesticide control are ineffective, mushroom farmers call it “veteran bacteria lice.” In order to pre-Blue prey control mites, we must first understand the harmful characteristics, the preliminary observations are now reported as follows. (A) distribution in mushroom culture materials In the sample of pre-Blue Microsatellite mites damage, we found that cut stalks (especially