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Management of wet bubble disease (Mycogone perniciosa)
 Wet bubble produced two main symptom types, one if young pin heads are infected they develop monstrous shapes which often do not resemble mushrooms.  When infection take place before the differentiation of stipe and pileus the selerodermoid form resulted, whereas, infection after differentiation resulted in the production of thickened stipe with deformation of the gills.  Both types of infections may exude water drops on the surface of infected sporophores.  Symptoms in the form of white mouldy growth on the mushrooms, leading to their putrefaction (giving foul odour) with a golden brown liquid exudates are also observed.  These water drops later change into amber colour.
Use of clean compost, pasteurization or sterilization of casing soil, good peak heating and fumigation of mushroom house and use of carbendazim/benomyl/ chlorothalonil/TBZ or prochloraz manganese fungicide for the effective management of wet bubble.  Casing should be treated with 1 percent formalin before 2-3 days of its application followed by immediate spray of carbendazim, benomyl, chlorothalonil, TBZ, prochloraz manganese complex @ 0.1% after casing application.  Alternatively, a spray of 0.8 percent formalin on to casing surface, immediately after casing, can be effective.  However, this concentration can be injurious if used at a later stage in crop development.

 

 

 

 

Last Update : Thursday, May 28, 2020