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Shroomok: I don't see problems with shrooms here. But I'm worried about mycelium (the start of overlay). Mycelium dry a little bit. High humidity and water drops on mycelium that dry out usually create a matted or crust-like mycelium. As a result, overlay. Check your fruiting conditions! FAE and Humidity should be in balance Dry myc + high humidity or water drops on myc + high CO2 = overlay Lack of FAE + high humidity or water drops on myc = overlay high temperature + low RH + high CO2 = overlay low RH + high CO2 = overlay dry casing layer + high CO2 = overlay dry casing layer + low RH + high CO2 = overlay any of parameters + genetic changes = stroma Find your case

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Cracked & split caps

A split or cracked mushroom caps and stems are neither contamination nor a disease. These symptoms indicate dehydration...

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May 2023

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Cracked & split caps

Black spots on shrooms & mycelium

Strange black spots suddenly appeared on mushroom caps and mycelium. Why is this happening? Is it contamination or not?...

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Sep 2022

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Black spots on shrooms & mycelium

Fuzzy feet and caps

Long stems, Fuzzy Feet, White Dots on mushroom caps or Fluffy Caps. What all these symptoms mean to a mushroom grower

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Sep 2022

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Fuzzy feet and caps