Oil dry products vary regionally, even when under the same label and packaging... (per published company data)...
Turface seems to be a great replacement for Shultz and at a much lower price. Its very stable and doesn't seem to leech off anything.
If you have Turface in one hand and APS in another you cannot tell a difference. TDS testing comes up nil as well. By definition the product would have to be very stable considering it's intended purpose.
I find them interchangeable...
Ahhh we are looking at Ampacbiotech.com's products...
Great stuff, much higher spore counts then the other brands, plus their specific strain is great for Cp's
The granular is used for transplanting and problem areas, I usually will sprinkle a 1/4 tsp or so into the hole prior to transplanting. Sometimes I will also sprinkle some on the surface if I'm feeling lazy about making up some flowable.
The flowable is mixed with water and used as a drench or a spray... peer reviewed research has shown that the benefits are systemic.
Its really a numbers game and should be used as a routine therapeutic IMHO. Trichodrma sp. are antagonistic and parasitic towards phytopathogens. It also forms a symbiotic relationship with the plant increasing nutrient uptake and disease resistance. All of which is well documented by peer reviewed studies.
What it wont do is result in a sudden burst of growth. What it will do is cause you to have less problems (ive not used fungicides in years) while at the same time increasing plant health and growth rates.
I have also used it to "cure" botrytis attacks
While it's not required to grow cp's or even grow cp's well.... it does make growing them well much easier IMHO
I have used it for years, Ive tried various strains and products and find that Ampac's is by far the best for our applications. Their strain was isolated from an Alaskan source IIRC, so I would assume it evolved in boggy and cool conditions.
If you want extra protection mix it with other strains (rootshield's T22 comes to mind)
I do have one friend who says he had bad results with trich, I have no explanation for this... but feel that it is important that I mention it. That being said, I know of many people who use it with great success...
One long time (25yrs) heli grower recently mentioned a "significant" reduction in botrytis attacks in the CP Digest (about a week ago) after I recommended it to him last year.
I wont mention names, but many of the "old school" cper's are regular users.
Caveat, Im definitely not a microbiologist... so some of what I said may not be technically spot on...
suggested reading:
http://bluegrasscarnivores.com/research1/trichoderma_research.pdf
HTH's
Av