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Contamination

Collection of contaminants we, growers, may face during the mushroom cultivation process. Sometimes you still can save the cake, sometimes the best solution is to get rid of spoiled mycelium, reflect on what went wrong, address the causes and start again

If you're confused and not sure whether you faced contam or non-contam issue — check out Troubleshooting section

Mushroom contaminants

Short library with TOP non-contam problems and common mushroom contaminants

Green mold aka Trichoderma

Signs of Trich contamination. Why Trich appear on the 2-3 flush? Add one magic component and forget about Green Mold contamination in mushroom growing. What to do with mycelium contaminated by Trichoderma Mold

Mycogone aka Wet bubble

Shapeless masses, fluffy blobs of mycelium ooze with amber yellow orange brown liquid. Mycelium piss or wet bubble disease aka Mycogone perniciosa? Symptoms of wet bubble contam. Why mycogone appeared on mushroom cake? How to treat wet bubble disease?

Cobweb mold

Cobweb mold contamination is one of the few molds are possible to treat. Cobweb disease symptoms. Cobweb mold treatment guide. How to prevent cobweb contamination. How does cobweb look like vs mycelium

Bacterial blotch disease

Bacterial Blotch disease in mushroom cultivation with photo examples for identification. Main causes of Pseudomonas tolaasii contamination. Tips on using WD-40 for prevention condensation issues. Chlorinated water for bacterial blotch treatment

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 sampling test on agar to check the air quality in your workspace for mycology or any other places

Blue-Green Mold (Penicillium)

Signs of Penicillium aka blue-green mold contamination on different steps of mushroom growing: agar, liquid culture, grain spawn, mushroom block. Causes and preventive measures. Possible treatment for early contamination on mushroom cake

Black Pin Mold (Rhizopus & Mucor)

Black Pin Mold aka Bread Mold caused by Mucor and Rhizopus. Explore main symptoms of contamination and check out photo examples. Discover prevention tips and treatment guide. Learn whether it poses any health risks to humans

Bacterial contamination

Examples of bacterial contamination in mushroom growing: Grain substrate, Agar, Liquid Culture, mushroom cake and fruit bodies. Practical cases and Q&A. Tips and tricks for prevention and treatment.

Dry Bubble (Verticillium)

Dry Bubble disease aka Verticillium contamination — real case study analysis from real grower's life. Symptoms of Dry Bubble with photo examples, main causes, prevention tips and cases that can be confuseв with Dry Bubble