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Test your knowledge about Bruising

Have you read the article about Mycelium and Mushroom Bruises carefully? It is time to pass a quick exam

Learning resources to pass this quiz: Mycelium Bruises or Mold Contamination

Questions covered in this Quiz

Case for id – Bruising or Mold? - What do you see in the photo? Try to identify it.

Possible answers:

  • Blue-green mold Penicillium
  • Green mold Trichoderma
  • Mycelium Bruising
  • Blue-gray mold Aspergillus

Case for id – Bruising or Contamination? - What do you see in the photo? Try to identify it.

Possible answers:

  • Mold contamination
  • Mycelium Bruising

Case for id – Bruising or Mold Contamination? - What do you see in the central part of the cake? Try to identify it.

Possible answers:

  • Blue-green mold Penicillium
  • Green mold Trichoderma
  • Mycelium Bruising
  • Green mold Cladosporium

Case for id – Bruising or Mold Contamination? - What do you see in this grain jar? Try to identify it.

Possible answers:

  • Mycelium Bruising
  • Green mold Trichoderma
  • Blue-green mold Penicillium
  • Green-gray mold Aspergillus

Case for id – Bruising or Mold? - What do you see in this grain bag? Try to identify it.

Possible answers:

  • Mycelium Bruising
  • Green mold Trichoderma
  • Blue-green mold Penicillium
  • Green-gray mold Aspergillus

The difference between mold contamination and mycelium bruising - What is the main difference between mold contamination and mycelium bruises?

Possible answers:

  • Bruises on mycelium or mushrooms never have a greenish tint
  • Molds have brighter blue color than bruised mycelium
  • Mold has a powdery or marshmallow texture, while mycelium and mushroom bruises don't
  • If you use Q-tip test and see colored powder on a cotton swab, it is mold; bruises don't leave any colored powder on a cotton swab

Case study - Can you identify what’s happening in this mushroom cake?

Possible answers:

  • Mycelium bruising
  • Green mold contamination
  • A mix of green mold contamination and bruising

Case study - Identify the problem and help the grower! "Hey guys, whats up? Big question, I left home for a couple days and asked a friend to water and leave some air on it for these days, it grown (more than I expected) but is this green thing a normal thing?"

Possible answers:

  • Yes, it's absolutely healthy cake, just mycelium bruising
  • No, it's mold contamination! Toss the cake immediately!

Case study - What does the Q-tip test show in this case?

Possible answers:

  • Mold contamination
  • Bruising

Case study - Take a look! What do you see in this spawn jar?

Possible answers:

  • Mycelium bruising
  • Blue-green mold contamination (Penicillium)
  • Early green mold contamination (Trichoderma)
  • Nothing wrong, absolutely normal snow-white mycelium

Read this article Mycelium Bruises or Mold Contamination to pass Quiz successfully