oyster mushroom problem, what is it, how it happened? how to take care and delete the problems.

Problem Identification:

From the image, the oyster mushroom substrate appears to have:

Black Mold Contamination – Dark black spots indicate mold growth.

Mycelial Abnormalities – The white, deformed mycelium suggests poor colonization or stress.

Excess Moisture – The substrate looks overly wet, which can lead to contamination and poor mushroom growth.

Causes:

High Humidity & Poor Ventilation – Excess moisture and lack of airflow promote mold growth.

Contaminated Spawn or Substrate – Using low-quality or infected spawn can introduce mold.

Improper Sterilization or Pasteurization – If the substrate was not properly treated, unwanted mold spores may have survived.

Overwatering – Excess moisture encourages mold and bacteria.

Solutions & Prevention:

✅ Improve Ventilation: Ensure proper airflow to reduce excess humidity.

✅ Lower Humidity: Keep humidity between 75-85% to prevent mold growth.

✅ Use High-Quality Spawn: Always source spawn from a trusted supplier.

✅ Proper Sterilization: Pasteurize substrate at 60-70°C for 4-6 hours to kill contaminants.

✅ Remove Infected Bags Immediately: If a bag is heavily infected, discard it to prevent the spread of mold.

✅ Use Lime or Hydrogen Peroxide: Spray diluted hydrogen peroxide (0.5-1%) on affected areas to slow mold growth.

✅ Monitor Moisture Levels: Substrate should be moist but not soggy.

Narendra Modi 

Sidhartha Gupta 

"Microfungi - the Mushroom Expert" 

Microfungi Mushroom Wala 

MICROFUNGI MUSHROOM RESEARCH & DEVELOPMENTS WELFARE TRUST 

Microfungi's School of Mushrooms & Fungi 

Oystocure