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PureMGP – Pure Mushroom Growth Promotion


MGP stands for Mushroom Growth Promotion – and DRmyc’s PureMGP is the world’s first blend of micro-organisms exclusively targeted towards that purpose. This formula encourages drastic yield enhancement and is suitable for use by amateur mycologists, hobbyist mushroom growers, and mushroom farmers alike. With DRmyc’s PureMGP blend, you can reliably expect an increase of between 30-70% in yields, while decreasing the time to fruit substantially.

This blend utilizes microorganisms that have the following effects upon your substrate, to promote healthy mycelium and bountiful fruiting bodies:

  • Solubize phosphate
  • Fix nitrogen
  • Solubize zinc
  • Solubize potash
  • Release VOC’s that promote vigorous fruiting
  • Decrease time to fruiting, sometimes as drastically as 50% versus untreated
  • Increase yields substantially over the substrate lifecycle
  • Increase the viability of secondary flushes & reduce contamination
  • Strong passive resistance to bacterial contamination

If you have issues with Trichoderma Harzianum, please check out either our TrichEVICT 80/20 MGP blend, or purchase a pure contaminant reducer alongside your MGP to mix together as needed for the severity of your contamination issue.

6g pack

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Usage Guide

Using DRmyc products is really a straight-forward process, but it is important that instructions are followed for best results. If too few microbes are present on your mycelial cake, contaminants such as Trichoderma Harzianum and bacteria may still thrive, wreaking havoc on your substrate – just the right amount, and you’ll see a concurrent increase in yields and decrease in contaminants:

Mixing Instructions:

  • Step One: Purchase one of our MGP or Contam Reducing blends, if you haven’t already (if you have, thank you very much for your business)
  • Step Two: Get a scale – if you have one already, great. Measure out 2G of formula. If you don’t have a scale, but want to proceed, you may use 1/2 a teaspoon. It is best to sanitize the teaspoon with 70% Isopropyl Alcohol before use. Be sure to reseal your pouch, and place it in a cool place out of direct sunlight.
  • Step Three: Add 2G of the formula into a sprayer bottle. Robust, cleaning style sprayers work better with the added matter.
  • Step Four: Add either Reverse Osmosis or Mineral Water to your sprayer bottle. Do not use chlorinated tap water. Once full, shake and apply as needed.

Application Instructions:

  • Step One: Spray twice inside of tray, grow bag, or whatever surface your bulk substrate is coming into contact with. Ensure spray is done evenly across the surface.
  • Step Two: Add your bulk substrate + spawn to the tray. Ensure it is properly cooled to below 110*F. Once substrate is added, spray four-times (for a 400G substrate) – or 1 additional spray per additional 100G of substrate. Mix substrate together using sanitary practices (surgical gloves).
  • Step Three: Once the substrate is mixed, and the top surface is in its final position, spray the top surface twice. Ensure even spread across the surface of the substrate.
  • Step Four: Cover the substrate, and then place in your incubator at between 80-86 degrees Fahrenheit.
  • Step Five: Do not disturb your substrate until the 7th day. Forget it even exists.  On the 7th day, check your pan – you may find your substrate is ready to place into the fruiting chamber. After this step, continue as you normally would and reap the benefits of a bountiful harvest!

Additional information

Weight 0.1 kg
Dimensions 1 × 1 × 1 cm