Alexander Tsarev
Mushroom industry

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Brown plaster mold

Papulaspora byssina, anamorfic Athelia coprophila, teleomorfic

The reasons for the appearance of brown plaster mold are similar to the ones of the white plaster mold. Its presence indicates improper preparation of phase 1 compost, the presence of excessively moist, stuck together clumps of compost and its high pH level (perhaps due to insufficient amount of gypsum). Moreover, a disturbance in the process of compost pasteurization and conditioning, and improper hygiene at spawning can lead to an infection of a batch of compost with brown plaster mold.

Unlike the white plaster mold, the spots of the brown plaster mold mycelium become a granular mass of hazel color that looks much like fine sand. The sand feels like talc to the touch.


The development of the brown plaster moldon the casing layer


Brown plaster mold on a casing layer area that is infected with nematodes
The measures taken on order to avoid the appearance of brown plaster mold are similar to the ones for white plaster mold.

Some mushroom growers sprinkle the mold nidus with superphosphate in order to create an acid medium in the substrate.

Comments

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levsam, Nairobi:

many thanks to this website.i would like to know why is preferably to use forest soil instead of farm...

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Yogesh awana ,Gurgaon:

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ankit raheja, new delhi:

dear sir,

could you suggest the compost formula to obtain 2.1 to 2.5% nitrogen.
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RASOUL:

PLEASE SEND YOUR FORMULA without-chicken-manure-compost
TNX
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How long can mushrooms be kept fresh?

Beatriz souza:

Gostaria de saber mais sobre o material usado na cobertura

Rajeev khan, kangra:

Nitrogen problem and good quality of material. Proper aeration need phase1.. Technical.

Compost Production. Personal opinion(Part 2)

Chennai:

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Compost Production. Personal opinion(Part 2)

Chennai:

I am interesting watch button mushroom compost preparation is isley to thanks for you by Eluma...

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saber from mallard mushroom iran:

Hi to achieve 2.1% N at the end of phase II you should use 75% of chicken manure and 10kg sulfate amonium...

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nalagarh:

Watering for 1st 2nd flush for better quality &quantity

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