DRMyc.com - MGP Plus - Growth Promoter for Mushroom Substrates. MGP Increases Colonization Speed, Yields, Fruit Size & Reduces Trich - Works with Rye Berries, Millet, Dung Loving Mushrooms (10 Grams)

great little addition to my myco arsenal. Seems to give them a little boost and contam rates are lower since using this product.

Fantastic stuff. I spray it in all my tubs with great success!

... But if you do like higher yields, quicker yields and less contamination, definately buy this stuff! Just make sure you follow the instructions properly! They can be found in detail on their web site.

As far as I can tell, this is the only product of its kind. Learning how to cultivate mushrooms successfully is a huge learning curve. Contamination with Trichoderma plagued my grows. I have noticed a significant improvement in the health of my substrate and size of my fruiting bodies!When you open the package it STINKS! It took me by surprise, I’ve never smelled something like it before. My first order I let the packet sit in a drawer and I noticed the smell went away. Which I don’t think was a good thing, my second order is stashed in the fridge and seems to be retaining its properties.It’s worth the price and the product is very effective!

I gave 4 stars because this product eliminates trich. Now I really never got trich but with mutations they can take up to 60 days maybe more. This is the reason I decided to use the No Trich product.Now as far as max yields I myself do not see a difference. If you have mold problems I would try this.

Both batches are doing remarkably well.

I used this on two batch’s . First on had trich immediately trashed it. Second batch had a good first fruiting but had trich on second fruiting.I usually don’t see trich til 4th or 5th fruiting. I will never use again!

Product works pretty good for speeding up colonization, but is not exactly the greatest to put in a spray bottle, clogged up 3 spray bottles in no time, should be more finely ground up