MGP Plus - Growth Promoter for Mushroom Substrates. MGP Increases Colonization Speed, Yields, Fruit Size & Reduces Trich - Works with Rye Berries, Millet, Dung Loving Mushrooms (50 Grams)

Is a combo of MGP Pure + Anti-Trich solution. Very useful for 2nd+ flushes so far

Absolutely awesome product, just as described instructions were easy to follow for a beginner like me. This my first flush on this cake and it's looking very good. Couldn't be more satisfied. Price is great, excellent quality. Be sure to use this product. Thanks Dr myc.

You can never truly know if these supplementary nutrient things work but ever since I started using this I've been having excellent results TIP: you need very little for it to be effective. You can get away with using this tiny bag for years, probably

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.

Amazing product!

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.

Dr Myc is not a serious company, they send God knows what l, without much labeling and expiration date. I was naive enough to spray this awful probiotic in 15 monotubes, just to learn a week later that over 145 lbs of CVG, and 80lbs of spawn went straight to garbage. Seriously do not buy this. Also, I bought their liquid culture premix same thing little yo no labeling no expiration date and the powder was a solid block of goo. As I am outside is and Amazon knows it, FML, IM down 80 bucks with Dr Myc.

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