Hypsizygus tessulatus

Buna-Shimeji

Strain: M 4780

 M 4780 hypsizygus tessulatus marmoreus

Qualities:

  • tasty mushroom
  • good storage

Characteristics:

Big commercial success in Japan & grown there in bottles. The groups of mushrooms are harvested before the caps open.  The beige caps are a little coarse and are often harvested when they have a diameter of ca. 2 cm, while the fully grown mushrooms can reach a diameter of 7 to 9 cm.

Origin

moderate areas in Old and New World

Recommended substrate

composition:

80% hardwood, mixed fine + coarse
10% cereals
10% bran

humidity:

62 %

Recommended bag

Microsac type PPB50/SEU4/V40-51

Bag filling

before or after heat treatment: 3 to 4 kg/ bag

Heat treatment

sterilisation, by preference at 121 °C

Inoculation

mix with ± 1% spawn

Incubation

room temperature:

22-23 °C

substrate temperature:

25 °C

duration:

Ca. 21 days

Ripening phase

room temperature:

20-22 °C

duration:

50-80 days

Induction temperature

15-17 °C

scratching after 70 to even 100 days
spray surface with water

Fruiting conditions

room temperature:

13-18 °C

relative humidity:

90-95%

CO2-concentration:

2000-3000 ppm (low)

light:

500-1000 lux

air movement: none

Flushes

number:

1-2

interval:

Ca. 20 days

Average yield

180 g to 200 g saleable mushrooms per kg fresh substrate

Remark Not to be combined with Pleurotus eryngii - spores may induce bacterial infections on Pl eryngii

Important remark: the cultivation guidelines in our technical data sheets are a compilation of the data given to us by experienced cultivators.  Individual differences in the cultivation conditions can thoroughly affect the results.