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GENERAL DISCUSSION ON MYCORRHIZAL INOCULANTS
>DIEHARD Mycorrhizal Inoculants and Microflora Stimulants>General Discussion On Mycorrhizal Inoculants


DIEHARD™
mycorrhizal inoculants are formulated as transplant soil amendments, injectables, and bare root preparations to inoculate landscape trees and shrubs, flowerbeds, established trees and shrubs and bare root seedlings with live beneficial mycorrhizal fungi. The inoculant contains highly selected strains of low host specificity endo- and ectomycorrhizal fungi that will quickly colonize the roots of new transplants to provide the best possible conditions for the roots to become mycorrhizal during the establishment period and beyond.  The mycorrhizal inoculants are combined with other beneficial fungi (Trichoderma), humic acids, biostimulants, beneficial bacteria, soluble sea kelp, yucca plant extracts and organic soil conditioners to promote rapid root development. To many formulations Horta-Sorb® water management gels are added to these inoculants to reduce transplant stress and watering maintenance, and to slow the release of all soluble components. The results are better survival and growth rates and less watering.

For convenience, consistency, and to reduce waste, many products are available in pre-measured, labeled bags.

 

What Does Mycorrhizae Do?

The full story of what effect mycorrhizal roots have on plants is still evolving.  We know that some plants cannot live without mycorrhizal roots.  We also know there are some plants that do not need mycorrhizae.  Most brassicas, for example, which include broccoli, brussels sprouts, cabbage, and cauliflower, do not associate with mycorrhizal fungi.  But the fact is that nearly all plant life is dependent on the association with mycorrhizal fungi.   Mycorrhizal fungi grow through the soil by extending its hyphae, which are the "roots" of the fungus, into the soil.  These "roots" are extremely fibrous and engulf every tiny crack and cranny in the soil that absorb water and nutrients in solution for a more efficient uptake by the roots of the plant.

The only food source for mycorrhizal fungi comes from the plant.  Thus, if anything begins to slow the food source, the mycorrhizal fungi becomes more active, and aggressive, to feed its host - the roots of the plant.  This is why plants in stressed conditions benefit from mycorrhizal roots.  Regardless of the cause, i.e., drought, heat, high salt, windburn, freeze, parasites, negative organisms, etc., mycorrhizae has evolved for millions of years to bring relief to the plant.  Mycorrhizae are a natural phenomenon.

In 1996, the USDA Agricultural Research Service reported a study where young trees were planted in a thinned forest next to mature trees.  The scientist studied where the foods feeding the young trees was coming from .  What they discovered was unexpected, yet very natural.  A great deal of the food supplied to the young trees actually came from the mature trees through the transfer of foods at the hyphae level between the hyphae of the mature trees and that of the mycorrhizae associated with the young trees.  Although no one has yet given good scientific fact for this to occur, isn't the parent feeding the child a natural, predictable phenomenon?

 

Why Inoculate? Why Inoculate?


The reason we need to inoculate is because standard nursery and greenhouse practices do not provide many of the natural systems that indeed plants have evolved with.  In nature nothing happens without a reason.  Nursery and greenhouse performance is measured by production and providing their customers with plants that they specify.  Users of nursery products specify according to size, shape, spread, and other physical characteristics.  Have you ever read, or heard of, a specification that required a complete plant both physically, and botanically?  The industry ignores plant and soil systems below/beyond the physical appearance required by customer requirements.  Horticultural buyers, both commercial and home owners, buy/specify based upon what the plant looks like and disregard any measure of "what is a complete, health plant". 
As a result of this viewpoint the nursery industry has been producing, and selling, plants that are not naturally complete.  Because nearly all plants are not complete without the mycorrhizal association they are relatively fragile and can quickly die if not maintained intensively.  We have this perfect system available to us but we have ignored it and instead employed billions of dollars in chemicals to control growth and predators.

Imagine for a moment that an experiment was done to see if cows, chickens, and hogs could be cloned to produce "super strains" for food stocks.  The experiment was conducted in sterile production facilities and then the animals were released into managed farmlands to further grow before harvest.  How do you think they would do, on there own, with no developed immune system.   With no developed natural systems to fight off disease, infection, or the hardships of reality like lack of water, food, and shelter. The animals would surely parish and the experimenters would conclude that this production practice was unsuccessful.  But isn't this the way we grow plants?

In the plant world we clone plants.  We control every aspect of growth for the plant and WE manage all of the inputs, like water fertilizer, etc., and spend billions of dollars annually keeping the predators away.   Plants grow in sterile mixes, sterile greenhouses, and we manipulate plant growth to the highest degree possible to produce the plant in the fastest possible time at the lowest possible cost.  Then we send them to a retail garden center or the wholesale landscape yard.  Next stop is the landscape and that's when many of the systems that Mother Nature has perfected over millions of years are needed for the plant to flourish.

Horticultural classes in our universities and technical schools give little attention to the topic of mycorrhizae - but this is changing rapidly.  Because of the pressure the typical nurserymen has to turn inventory, little, if any attention, has been given to the natural health of the plant.  Thus the nursery industry  produces plants that are not naturally complete.   Because nearly all plants are not complete without the mycorrhizal association they are relatively fragile and can quickly die if not maintained intensively.   Newly installed plants today are an immediate target for predators because they lack natural immune systems and defense mechanisms that plants have evolved with and are found in health plants both in managed and natural settings.  These systems, which have evolved over hundreds of millions of years, are in the truest sense State-Of-Art systems that are as perfect as nature can provide.  Today our culture wants to use less harmful systems to manage plants.  We are interested to know how to stop polluting our water tables and our air with chemicals.  All of us are awakening with the knowledge of what our past abuses have done to our environment and subsequently to our heath and the health and future of our children.  With respect to plants and plant establishment, and all life for that matter, “natural” is better.  “Natural” for plants lies beneath our feet, in the ground, a much more complex environment than we have ever imagined.  Fortunately the world beneath our feet operates in a most logical, and predictable way.  Mycorrhiza is but one of the systems beneath our feet but it has to be ranked as a major component of natural plant health.

LANDSCAPE CONDITIONS ARE NOT IDEAL.  Most will agree that we could use some help for better results with newly planted landscapes. Often newly planted landscape goes into sever shock. Generally the reason is poor water management, but heat, time of the year, soil conditions, along with untold other factors also play important roles here.  One of the biggest problems that no one seems to talk about is the fact that most nursery grown plants have little, if any, natural systems working with the plant.  Mycorrhizal roots take hold faster - there is little doubt on this fact.  Plus, what attention is given to the microbial activity in the soil.  Without good bugs in the ground we lose the opportunity of using numerous "natural" systems that plant have used for millions of years to establish themselves.

If the landscaper was planting a complete plant system in less than ideal conditions there would still be stress, etc., but the degree of damage to the plant would not be as great with these natural systems working for the plant.  If all conditions were ideal there wouldn't be a gamble when transplanting and one wouldn't need to worry about inoculating.  But generally conditions are not ideal and you could use some help in "stacking the deck" on your side. Inoculation can significantly aid transplanted trees, shrubs and flowerbed results, especially under adverse conditions.  Feeding the ground with biostimulants to energize the soil, and even adding beneficial bacteria, can make a world of difference for the transplant.  Finally, including a water management gel to hold water and manage all the solubles can have dramatic results.

Think about this situation.  You're a landscaper that uses good management practices when planting trees.  Your crews are properly supervised and employ good management practices.  You go to a nursery and purchase 100 - 3 inch caliper trees - all identical.  Your crews then install 10 trees each on ten jobs over the next week.  All trees are planted the same with identical handling, irrigation and maintenance.  On one of the sites all of the trees take off without missing a beat.  At the other extreme one of the sites require 6 resets.  Performance of the trees at the other eight sites vary back and forth between the "best" and "worse" sites.  How can this be?  Everything was the same, right?  No.  The differences were due to the ground the trees were planted into.  The "best" site had LIVING soil.  The "worse" had DEAD soil.  Get the picture?  It's always a crap shoot when planting trees unless you know the value of the ground you're planting in.  Everyone know this but who's got the time to test every planting site?  How many test sites would one have to do at a planting site to get good data?  Dozens?  Hundreds?  Do you know where I'm going with this?  Use DIEHARD Transplant.  It has the ingredients to naturalize BOTH the plant and the ground.

DIEHARD™ inoculants, with all the additional additives, are an investment that can return its cost several times over in a number of ways.  Just think how you would feel about your projects if you had all the goodies Mother Nature has to offer working for you.

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Types of Commercial Mycorrhizal Inoculants

There are three types of mycorrhizal fungi inoculants commercially available endo, ecto and ericoid. Most are available in dry form.  Ecto is in spore form and endo is available as propagules, i.e., spores, root fragments and hyphae.  Endo in spore form alone is a poor inoculant if you want results within 6 weeks according to research that has been published.  Research has shown that endo mycorrhizal inoculants with spores, root fragments and hyphae are superior to those containing only spores.  Research shows that hyphal fragments are most infective, followed by mycorrhizal root fragments and then spores.   Root fragments actually contain many spores and are better at protecting spores from adverse environmental conditions compared to spores alone.  Ericoid is presently is in dry form. 

Reasons why spores alone are dangerous for an inoculant:
1. Spores degrade over time, even when dried
2. For some species, spores are the only infective propagules and when they degrade the inocula are effectively dead.
3. For many species in Glomus, hyphae from root fragments can be up to 10X more infective than spores.
4. Root fragments, when dried, are not as susceptible to degradation as spores, especially in a formulation containing high organic matter.
5. Ergo (from 4 above), even if part of the inoculum degrades with storage, infective propagules still can be present for a longer period in a mixed inoculum formulation.

The reality of inoculum marketers today is that most are just that "marketers".  Some sell a single strain of mycorrhiza mixed in with a carrier backed with all the claims thousands of research studies will support.  Some sell liquids.  Some sell powders.  Some sell only one kind.  Some sell tablets.  Most sell "cocktails" containing a variety of organisms.  Some have formulated for numbers.  Some for results.

One company that has been in the industry for 10 years marketed a transplant product for trees and shrubs which contained no beneficial bacteria package.  What were they thinking not to include such an obvious package.  Most landscape materials are planted in disturbed soils.  What logic is there in not including a bacteria package?  Bacillus subtilla, for example, is an effective "mycorrhiza helper bacteria". 

Diversity is THE name of the game.  The ground beneath our feet is a macrocosm of hundreds of systems and billions of participants.  Diversity - include as many natural organisms and systems as feasible - that's the signature of a manufacturer that understands their correct role.  Ingredients that support a clear biological advantage to support plant growth in logical amounts and and at appropriate times.

Here's a comparative study that shows how over the past 4 years competitors have changed their products to more mirror the products that offer the best result: http://www.horticulturalalliance.com/Competitive_Comparison234.asp
 

Why Include Horta-Sorb® Water Management Gels?  

Formulations of DIEHARD™ contain Horta-Sorb® water management gels to protect the roots, reduce transplant stress and watering maintenance, and to slow release all soluble components of the formulation.   University research has shown for over a decade that water management gels absorb fertilizer and slow release it to the roots.

Mycorrhizal inoculants for every purpose in the "Green Industry"

So, how can we treat plants with mycorrhizal fungi?  The rules haven't changed a bit - root dips, transplant amendments, root injection, drenches and vertimulching.  What do we treat the plants with? And since we are going through the exercise, is there anything else that we can do? You bet there is.  If the concept makes sense lets consider a “cocktail”. Instead of a simplistic approach (chemicals) lets use a systems approach (natural systems, that is). In fact, forget the “cocktail”, lets give the plant a “banquet”:

Ingredients and summary benefit statement:

Endomycorrhizal fungi - 7 fungal species - Glomus mosseae, Glomus intraradices, Glomus fasciculatum, Glomus dussii, Glomus clarum, Glomus deserticola, Glomus microaggregatum.
Ectomycorrhizal fungi - 3 + fungi - Pisolithus tinctorius, Scleroderma and multiple species of Rhizopogon.
Trichoderma - 6 fungal species that include Trichoderma (6 strains), Gliocladium virens (2 strains), Trichoderma harzianum (2 strains), Trichoderma viride (2 strains),
- A beneficial fungus that is used to enhance mycorrhizal colonization and protect the roots.
Biostimulants - over a hundred from Humic Acid, Sea Kelp Extract, Humus, Yucca Plant Extract.
Amino Acids - known to buffer heavy metals and high salts and improve microbial activity in the soil.
Vitamins & Enzymes - biotin, folic acid, B, B2, B3, B6, B7, B12, C and K - essential for chlorophyll production, cell division, transpiration and respiration.
Beneficial Bacteria - 47 strains - Nitrogen Fixing, Phosphate solubilizing, Cytokinin-producing and Growth Promoting Bacteria. - to include Bacillus (32 species)(11 strains of the "mycorrhiza helper bacteria"
Bacillus subtilla, Pseudomonas (2 species), Streptomyces (2 species).
Water Management Gels - agricultural grade to manage, i.e., slow release, hold, etc., water and nutrients.

All of the above ingredients are well proven and commercialized - each loaded with benefit to the plant and its growing environment.  There is a school of thought that may think that one, or more, of the above list is not necessary, or complementary to plants - if you are from that school simply ignore the ingredients that you may question and focus instead on all of the rest.   Including water management gel to hold water and slow release all the solubles can make a world of difference for the transplant and provides dramatic results.

We have really tried to put together the best possible products for your use and look forward to your favorable business and comments.

If You Deal With Plants - We've Got You Covered!!

DIEHARD™ mycorrhizal inoculants are formulated as transplant soil amendments, injectables, and bare root preparations to inoculate landscape trees and shrubs, flowerbeds, established trees and shrubs and bare root seedlings with live beneficial mycorrhizal fungi. The inoculant contains highly selected strains of low host specificity endo- and ectomycorrhiza fungi that will quickly colonize the roots of new transplants to provide the best possible conditions for the roots to become mycorrhizal during the establishment period and beyond. The mycorrhizal inoculants are combined with Trichoderma, humic acids, biostimulants, beneficial bacteria, soluble sea kelp, yucca plant extracts and organic soil conditioners to promote rapid root development. The formulation Horta-Sorb® water management gels are added to these inoculants to reduce transplant stress and watering maintenance, and to slow the release of all soluble components.

Compatibility

Species:  Nearly all plants and shrub species.

Fungicides: Most fungicides normally have no effect. Foliar applied fungicides have no effect if applied properly as they do not enter the ground and come in contact with the mycorrhiza. Non-detrimental fungicides may be applied 2 weeks before and after use of product.

Research

Research has shown that mycorrhizae, biostimulants, beneficial bacteria and super absorbent gels do provide significant benefit to plants grown in greenhouse, nursery, landscape, forest, reclamation projects, agriculture, i.e., virtually everywhere that plant are grown.  Research has shown that mycorrhizae alone: 

(Product Benefits)

IMPROVES

REDUCES

Survival
Rooting
Flowering
Water Absorption
IBA Effectiveness
Improves Fe-Efficiency
Nutrient Availability
Yields and Production
Plant Losses
Fertilizer Use
Need Of Pesticides
Heat Stress Damage
Irrigation Frequency
Losses From Drought Conditions


Research on mycorrhizal fungi used in DIEHARD™ products