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)

I've been battlining mold, this seems to have remedied my problems. Super easy to use and clear instructions.

I had a pretty bad trichoderma outbreak in my grow space awhile back, and despite multiple deep cleanings, meticulous procedures and running a HEPA filter 24/7, each subsequent grow resulted in a mean green outbreak right around the first flush, crushing yields. I know what I'm doing, and I've been doing it for decades: I culture on agar, my rye grain spawn is super robust, substrates pasteurized per Stamets and spawned 1:3 grain/substrate, no casing - this had been working for years and then all of a sudden it wasn't. I tried autoclaving the substrate and then introducing b. subtilis (a known trich-suppressing microbe) during spawning, but kept getting hit. I was desperate.Got both MGP and Just the Trich, thinking I'd try MGP first and then move on to JTT if that didn't work (the maker says JTT will reduce yields). Followed the MGP instructions to the letter - less is more - and was blown away both by the substrate colonization time (4 days from spawn to ready-for-fruiting), voluminous and even pin set and absolutely no sign of the mean green. I've gone five flushes before the substrate putters out.So thanks, Dr. Myc. I don't know what's in this secret formula exactly; I suspect (based on the scent and the colour of the powder) it's a mix of b. subtilis and some other beneficial bacteria along with a surfactant, but if I purchased those components separately and combined them myself (I priced out this option, BTW) it would still be about the same cost, so why bother? The smallest package will last for a year at least, and it's money well-spent, as it solves two of the most persistent bugaboos of home cultivation: slow, uneven colonization/pinning and trichoderma outbreaks. Essential.

Amazing product. I will never again grow without it.

... 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.

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.

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

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