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Bark chips

Does anyone know whether the white stuff that forms on bark chips inside the plastic bag they come in is harmful to plants? I mean, is it ok to mulch plants with bark with the white stuff on or not?

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  • Dave MorganDave Morgan Posts: 3,123

    Ceninpedr, it's quite normal, nothing to worry about.

  • Most probably nothing at all to worry about. Many types of fungi help break down woody tissues and other types survive by consuming bacteria in the mulch. Either way, fungus is beneficial so no mulch fungus treatment is necessary in most cases.

    Unfortunately there is one but, that being the possibility that it is honey fungus.

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