Dave R.'s picture

Mushroom Cultivation Steps 2 and 3

Step 2 in my list of growing mushrooms from spores or tissue involves transferring mycelium from the initial culture to one or more additional plates.  There are several potential reasons for doing this.  The first, as discussed in a prior blog, is expansion of mycelial material.  Once a culture has covered the surface area of a petri dish, it can be cut into many small pieces and each piece can be used to grow out another plate.  This process can be repeated numerous times, greatly expanding the material available for later steps. 

Dave R.'s picture

Mushroom Cultivation Step 1

In a prior blog I listed the usual steps in growing mushrooms from spores or mushroom tissue.  I will now illustrate the steps with a few photos and explanations.  Following the club tour of the PSU mushroom research facility in February I placed small pieces of Oyster and White Button mushroom tissue on agar media and allowed them to grow.  Agar is a seaweed extract that gelatinizes water at room temperature.  Basically it's room temperature jello.  We like a little sugar and flavor added to our jello, and so do the mushrooms.  A wide variety of nutritional ma

Soil temperature map link!


Found this on the web...thought with Morels being on everyones mind,we may all find this useful! :)

Mushroom identification and discussion.

Beginning next week on April 4, I will restart my weekly Monday free wild mushroom identification and discussion sessions at Irving's Bagles, 110 East College Ave in State College, PA from 11:30AM to 1:00 PM.

 Bring what you find.

Have you been enjoying the Velvet Stem mushrooms (Flammulina velutipes) that are growing now on elm trees and stumps now?

Bill Russell


Here are a couple for you guys to ID

These were both found at Cooks Forest last October. The first one is on top of an Oak stump and yes it is all the same specimen. Talk about morphing. LOL Not sure if it is being parisitized by another fungi or if there is some other explanation for the strange growth. The second one is on a well rotted Hemlock log.

Good Luck




Dave R.'s picture

Mystery Mushroom, or Not #7

This was one of the unsolved mysteries from our foray this summer.  I found this thing growing in a cavity in the base of a living tree.  The tree apparently had been injured some years prior, allowing decay of the wood.  Some of the dead wood tissue had flaked off and accumulated in the cavity and the growth was right at the upper juncture of the decayed organic material.  The total length of the growth was about eight inches, composed of four main "nodules."  I recall there being some fluid exudate on the surface of the growth, even though

Dave R.'s picture

More Mushroom Multiplication

In the last blog I presented the case for the amazing multiplication capacity of certain mushroom species.  I'd like to expand on a few implications of this. 

Dave R.'s picture

Mushroom Mathematics

Ok, it's mostly just mushroom multiplication.  But the results are fairly astonishing none the less.  Consider the steps of the process described in my prior blog, starting with a small bit of mushroom, expanding it on agar, expanding that on grain, and inoculating a fruiting substrate with the grain to produce edible mushrooms.  Consider that we start with a half inch square piece of tissue.  When the mycelium has covered the surface of a 3.5 inch petri dish, the 0.25 square inch of material we started with has increased to over 7 square inches of myceliu

Dave R.'s picture

Growing Mushrooms in Sterile Culture

As I mentioned in the prior blog, there are several relatively easy ways to grow mushrooms either by allowing nature to do all the work or by starting in the middle to later stages of the growing process.  If, for example, you start with an indoor kit then the mycelium typically has nearly fully colonized the fruiting substrate when you receive it.  Your participation is limited to the process of initiating fruitbody (mushroom) production and harvesting the crop.  If you instead start with grain spawn, then you are starting one step further forward and you

Wei-Shin's picture

Cup of Oysters

If you attended the recent meeting about how to grow your own mushrooms at home, you may have picked up a cup of oyster mushroom spawn from me!

Syndicate content