Trichoderma Harzianum - In Soil

Hey there ROLLITUP community!

I've been studying facts about Trichoderma Harzianum and it seems like it's very beneficial fungi.

I checked the forum and found a little bit conversation here and there so I wanted to put up own topic for T. Harzianum.

Trichoderma Harzianum is a beneficial fungus widely used in agriculture, horticulture, and even hydroponics due to its ability to promote plant growth and protect against soil-borne pathogens.

Trichoderma Harzianum provides plant growth promotion as improved nutrium uptake and root growth stimulation. It also provides biological control of pathogens as antagonistic activity, competition of recources and production of antimicrobial compounds. It provides also induced systemic resistance (ISR) as it enchanses plant's natural defence mechanisms. It promotes stress tolerance. Also better texture in soil and better overall health will be noticed.

I'd say this is pretty impressive thing as it can defeat root rot diseases such as Rhizoctonia solani and Pythium. Also increase in yields and root mass would be very nicey effect.

Do you guys have experience with this fungi and what do you think about it?
So its beneficial to plant's health and growth how does this show up?
If you have tried it, did you experience root rot at all?
Do you see this as beneficial or as bullshit?

Thanks, svleeh

svleeh said:

Hey there ROLLITUP community!

I've been studying facts about Trichoderma Harzianum and it seems like it's very beneficial fungi.

I checked the forum and found a little bit conversation here and there so I wanted to put up own topic for T. Harzianum.

Trichoderma Harzianum is a beneficial fungus widely used in agriculture, horticulture, and even hydroponics due to its ability to promote plant growth and protect against soil-borne pathogens.

Trichoderma Harzianum provides plant growth promotion as improved nutrium uptake and root growth stimulation. It also provides biological control of pathogens as antagonistic activity, competition of recources and production of antimicrobial compounds. It provides also induced systemic resistance (ISR) as it enchanses plant's natural defence mechanisms. It promotes stress tolerance. Also better texture in soil and better overall health will be noticed.

I'd say this is pretty impressive thing as it can defeat root rot diseases such as Rhizoctonia solani and Pythium. Also increase in yields and root mass would be very nicey effect.

Do you guys have experience with this fungi and what do you think about it?
So its beneficial to plant's health and growth how does this show up?
If you have tried it, did you experience root rot at all?
Do you see this as beneficial or as bullshit?

Thanks, svleeh

Click to expand...

YES YES YES AND HELL YES!!
I run kongii, Verde and Harzianum. They're an absolute must in my gardens. Alot of folks rave about the benefits of endo/ecto myco, but for the vast majority of growers who cultivate in containers like pots will never truly get any benefits out of them. Not saying they're not beneficial, they're just being used improperly and not really an ideal microbe for cannabis due to the short life span of cannabis and containers generally go through a wet/dry cycle. Mycos are best used in a large volume of substrate that can maintain its hydrostatic pressure consistency and that being No-Till is the ideal scenario.

Trichoderma on the other hand..... now that's a true workhorse and can be very beneficial in pots and containers with that wet/dry cycle. This fungi has incredible resilience and quite honestly very hard to kill off or stall. And you nails the beneficial aspect to introducing them to your soil and even root dusting at transplant.

FYI.... In my evaluation on this fungi they love coco coir and really really love cocao bean hulls. I mulched a 18gal SIP container with 4" of bean hulls and the trichoderma had completely colonized it, I'm talking solid, the surface looked normal, but just barely scratch around and it was solid green just under the surface all the way down the the soil line. I was growing casablanca Lilly and the flower buds are the size of a typical banana, once opened the flowers were wider than my head. And the fragrance they had could be easily smelled 70feet away. Since that day I've never grown anything without trichoderma. And that's what fueled my interest in researching it 15yrs ago.