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Cultivation
Growing Problems

Contamination gallery on Shroomok

Photo gallery of contam identification in mushroom cultivation. Growers' concerns about whether mycelium is contaminated or not. Mold, bacteria, yeast, virus, abnormal growth, no growth at all. Some cases are not contaminants, but cultivators are worried

Diseases
Wet Bubble (Mycogone) Wet Bubble (Mycogone)
Dry Bubble (Verticillium) Dry Bubble (Verticillium)
Mold
Cobweb Mold Cobweb Mold
Green Mold (Trichoderma) Green Mold (Trichoderma)
Blue-Green Mold (Penicillium) Blue-Green Mold (Penicillium)
Black Pin Mold (Rhizopus & Mucor) Black Pin Mold (Rhizopus & Mucor)
Black-yellow-green mold (Aspergillus) Black-yellow-green mold (Aspergillus)
Orange bread mold (Neurospora) Orange bread mold (Neurospora)
Pink mold Pink mold
Bacterial contamination Bacterial contamination
Bacterial Blotch Bacterial Blotch

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Take a look at the following publications

Bacterial blotch disease

The most prevalent bacterial disease affecting both commercially cultivated and home-grown mushrooms.

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Oct 2023

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Bacterial blotch disease

DIY Mold Test on Agar

Mold spores are everywhere. But how do you know what airborne contaminants are present in your home? Make a simple air s...

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Jul 2023

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DIY Mold Test on Agar

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

Mycogone aka Wet Bubble

Shapeless masses, fluffy blobs of mycelium ooze with amber yellow orange brown liquid. Mycelium piss or wet bubble disea...

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Feb 2023

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Mycogone aka Wet Bubble

Sterilization vs Pasteurization for bulk substrate

Pros and cons of subject to prevent green mold Trichoderma contamination in mushroom growing. Discussion among members o...

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Jan 2023

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Sterilization vs Pasteurization for bulk substrate

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