近年来平菇栽培中退菌现象常有发生,给平菇生产造成很大损失。现将平菇退菌的有效预防及处理措施介绍如下。1.退菌的原因主要原因是发菌棚通气不良,因保温导致菇棚内二氧化碳浓度偏高;次要原因是基料营养不足、菌种老化。2.退菌的预防一是严把菌种关。生产前,对菌种、原料做有 Pleurotus ostreatus cultivation in recent years, the phenomenon often occurs, to the mushroom production caused great losses. Now the effective prevention and treatment of illegal mushrooms Pinggu introduced as follows. 1. The main reason for taking off the bacteria is due to bad ventilation germ shed, due to heat insulation led to high concentrations of carbon dioxide inside the mushroom shed; secondary cause is the lack of base material, strain aging. First, the prevention of detoxification bacteria strict customs. Before production, the bacteria species, raw materials do