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What are the fungi that we sometimes see on the bark when we open a bag?Updated 4 months ago

In certain conditions, fungi may grow on the bark, either before shipping or in your house if the product is left in warm moist conditions. When this happens you will see a fine whitish-gray layer of fungi on the bark. These are most likely Penicillium or Paecilomyces and are not detrimental to your plants; in fact, they are often beneficial as they help to prevent the colonization of pathogenic fungi. In most cases, when the material is moved or shifted around the fungi is disturbed and will disappear. 

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