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Fairy Ring damage in lawns can be repaired with BioVam's Mycorrhiza fungi.

How to identify Fairy Ring lawn disease.

Out competing Fairy Ring lawn disease with mycorrhiza treated grass.

Overgrowing Fairy Ring Fungi with BioVam's mycorrhiza fungi colonized turf grass roots allows moisture into the soil and the Fairy Ring fungi can not live in moist soil.

How BioVam Mycorrhiza and Biosol Forte 7-2-1 Fertilizer aid healthy grass to grow throughout the dead zone of Fairy Rings.

BioVam is an environmentally friendly solution to Fairy Ring problems using organic products.

Our best buy is our Garden Sales Kit which gives you a 25% discount on all the products in the kits. We do allow larger quantity substitutions in the kit (contact us via phone 509-327-7670 or email usl). Bulk BioVam can be included in the kit but will not be subject to the 25% discount because it already is discounted. Click here to order the Organic Garden Kit.

Protocol For Treating Fairy Rings

BioVam works with healthy grasses and strengthens them so they can resist the effects of Fairy Ring fungi.   BioVam is not fungicidal.  Mycorrhiza in BioVam simply makes healthy grass stronger so that it can over run the dead zone of Fairy Rings.  BioVam raises the health of grass so it can out compete with the destructive fungi in the Fairy Ring.  Fairy Rings can be treated with our products as long as the ground is not frozen.

Site Preparation:

We have developed a procedure to prepare the turf grass in the vicinity of the Fairy Ring before the BioVam is applied.   First, aerate through the area from two feet outside of the dead zone all the way through the entire Fairy Ring.  A commercial aerator can be used.  We have used a spiked aerator.  A pitch fork or deep spiked aerator should also be used to get additional holes 8 to 10 inches deep into the soil: this is very important!  Wash off your tools so you are not spreading the Fairy Ring fungi around your property or to other people's property.  Next, use a thatch rake to take up any mushrooms, moss, or any material that is not part of the turf grass in the area.  Get down to the dirt using that rake!  Rake an area over the entire ring to about two feet out from the outer edge of the dead zone.   Keep the material off other areas of your turf grass -  rake it to the center of the Ring.  Bag up the material and properly dispose of it. 


We advise evenly applying a quart of BioVam to each 1,000 square feet in the area over the Fairy Ring.  To avoid the BioVam from drifting in the breeze and to get "even" coverage, use a drop spreader set on 4-5. Then apply the BioVam over the entire area from two feet outside of the outer edge of the dead zone. It is very important you get an "even" coverage in your treatment area.  Apply grass seed that "matches" the existing turf over the entire area and use a rake to lightly work the grass seed into the soil.  When it germinates, the BioVam will help build up the roots and the grass will overgrow the entire area.  Next, apply Biosol Forte 7-2-1 fertilizer at a rate of 55 pounds per 1,00 square feet over the entire prepared area.  Apply water so it all soaks (not flooding) into the top of the ground in the Fairy Ring and soaks into the aeration holes.  Do not skimp on this first watering!  The BioVam must get into the soil and down into the roots through the aeration holes.  Water at least once a day until the seed germinates and is growing strong.  Do not let the area dry out!  A fan nozzle works great for this. 


From here on out, do not apply chemical fertilizers in this treatment area. It will inhibit and possibly stop the Mycorrhizal process you just set into motion above. Instead, we highly recommend that you treat the rest of your lawn with a normal application of BioVam Mycorrhiza and Biosol Forte 7-2-1 fertilizer yearly, starting preferably at the same time you treat your Fairy Ring(s). Since Fairy Rings are soil (spore) born, treating your whole yard will greatly lessen the chance of anymore popping up elsewhere in your lawn! The test lawn below has had two annual normal BioVam / Biosol Forte 7-2-1 treatments, once when the Fairy Ring was treated and again in the Spring of 1999. That's it!

Other fairy rings have been attempting to establish in other areas of this test yard. Mushrooms have come up, then dried up and went away. Even though this has occurred several times, the normal treatments applied to the lawn is keeping the dark green nitrogen releases and dead zone activity at bay. We feel that this is a powerful testament to the effectiveness of BioVam and to the "health" of "BioVam Grown" lawns. In over 40 years of combined Home and Garden Center retail management experience we have never seen anything perform in this fashion, naturally or not. Not just on the Fairy Rings but with the lawn as a whole.

Click on picture to enlarge

The pictures below are from one of our test sites; a residence in Spokane, Washington. 

Fairy Ring 09-29-98

This picture, taken on 9/29/98, shows a Fairy Ring with dead zone and mushrooms.  We prepared this site according to the above procedures. 

Fairy Ring 10-13-98

This picture, taken 10/13/98, shows no further growth in mushrooms and we can see some grass growing through the dead zone.  Some of that grass may have been revived, but as time went on, it became obvious that healthier turf was growing into the dead zone of this Fairy Ring.

Fairy Ring 10-28-98

This picture, taken 10/23/98, shows a cross section of the dead zone.  The outside edge of the dead zone is to the left.  You can see that grass has been establishing itself into the dead zone.   The dry whitish / chalk colored u-shaped areas are the Fairy Ring fungus within the soil.  This area is surrounded by and permeated with the "hydrophobic" effects of the Fairy Ring fungi, as seen in the next picture. The whitish coloring at the bottom left is the hyphe from the Fairy Ring fungi. 

Fairy Ring 10-28-98

Identifying Fairy Ring Fungi in Soil

Here you can more closely see the "hydrophobic" effects that the Fairy Ring fungi creates to protect itself. This picture, taken 10/23/99, is a cross section of soil we took out of the dead zone.  We ran water over the surface to see how things were going.  The water soaked in where the Mycorrhiza fungi and grass roots were intruding, but it beaded up like on a waxed car deeper into the soil.  The Fairy Ring fungus protects itself by this "water proofing effect."  As the Mycorrhiza fungi and grass roots intrude, the domain of the Fairy Ring fungus is weakened.

Fairy Ring Hyphe 10-28-98

This picture, taken 10/28/98, shows the white hyphe from the Fairy Ring fungi coating several pieces of grass root.  There was also a significant musty smell present from the Fairy Ring fungi. Water also rolled off when applied. Again, due to the "hydrophobic" protection the Fairy Rings creates to protect itself.

Fairy Ring 06-08-99

Out competing Fairy Ring in Lawn with BioVam

This picture, taken on 6/8/99, shows that the grass has totally over run the Fairy Ring dead zone.  New mushrooms did come up in this ring, but they faded away in a couple of weeks.  Even so, there is no indication of the dead zone returning.  The new growth of grass remains strong and the entire area of turf is absorbing water like it should. 

 Fairy Ring 7/30/99

This picture, taken 7/30/99, from a cut made across the former "dead zone", about 5 or 6 inches back from the original cut above and shows no sign of the Fairy Ring fungi.  The soil was quite moist and had roots from the turf grass extending more than a foot into the soil.  No "protected dry soil" was present and no sign of the whitish Fairy Ring fungi hyphe was found on the roots or in the soil. There was no "hydrophobic" effects detected anywhere within or on this soil area. There was also no odor of the Fairy Ring fungi present in the soil.  We could find no sign of the Fairy Ring fungi. Worms had also intruded throughout the area, where before none were present.

Fairy Ring 7/30/99

This picture, taken 7/30/99, of the sod removed from the dead zone of the above Fairy Ring, shows no sign of the whitish hyphe of the Fairy Ring fungi.  There was also no odor from the Fairy Ring fungi that was once present in this location - but had the smell of sweet and rich top soil. There was "no hydrophobic effects" on any of the sod we removed; water absorbed evenly over the entire sod sections.  We found soil that was damp and filled with a significant amount of roots from the new grass that had grown into the former "dead zone" of this Fairy Ring.  These results illustrate clearly that the problem is not just "masked over." 

Our testing thus far has been very positive and this organic solution has resulted in the following observations:

As you can tell by the dates on the pictures above, this process took only a season to achieve. Results will vary from one site to another depending upon the type of Fairy Ring fungi, soil conditions, type of grass, preparation procedures, watering , etc. And whether you sustain this Mycorrhizal process through annual treatment and maintenance with BioVam Mycorrhiza and Biosol Forte 7-2-1 fertilizer over the whole lawn thereafter.

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In search of the above Fairy Ring.

Grass plug in old Fairy Ring dead zone.

This picture was taken on 8-30-99. A plug of grass was removed directly within the dead zone of the above Fairy Ring. No sign of the Fairy Ring mat or hyphe was found, just nice clean rich black soil, moist throughout. The blue arrow indicates where the above cut into the Fairy Ring is. Temperature over the last few weeks, high 80's low 90's, with very warm nights. Fairy Rings love this weather. BioVam Mycorrhiza treated Fairy Rings however, don't!  Notice the beautiful natural greens of this BioVam Grown lawn!

Ground is clear of Fairy Ring fungi.

The picture above is a close up of the above plug. There is excellent root development throughout it as well as good worm activity. Every plug had several worms within it.

Grass plug at leading edge of old Fairy Ring.

The picture above was taken 8-30-99. This plug is outside the Fairy Ring dead zone, slightly outside the expanding edge of the old Fairy Ring - where dark green grass and mushrooms of the Fairy Ring would normally appear. The Fairy Ring mat would have normally quickly progressed into this area had it not been treated with BioVam Mycorrhiza and Biosol Forte 7-2-1 fertilizer. Again, there is no sign of the Fairy Ring fugal mat, etc., just nice clean sweat smelling black soil. #1. Notice how damaged this area is in the first picture on this page. This area was heavily regenerated by the BioVam Mycorrhiza.   #2. This is the above cut into the Fairy Ring.

Leading edge of the old Fairy Ring. HEY! Where did it go?

The picture above is a close up of the above plug. Again, nice clean sweet smelling soil, and no sign of the Fairy Ring fungal activity.

Grass plug in another section of the old Fairy Ring dead zone.

The picture above was taken 8-30-99. This plug is from another part of the old dead zone. Again, no sign of the Fairy Rings activity was found.

Grass plug from another section of the old Fairy Ring Dead zone.

The picture above is a close up of the above plug.

Plug from the center grass area of the old Fairy Ring.

The picture above was taken on 8-30-99. This is the grass area of the center of the old Fairy Ring, which you can see in the first and second pictures on this page. Again, no sign of the Fairy Ring fungal activity, mat, soil dryness or "hydrophobic" effects. Just nice clean moist sweet smelling black soil. In all these pictures notice how the grass has thickly regenerated throughout the old Fairy Ring dead zone area as well as the rest of the turf, and the beautiful natural greens of this BioVam Grown lawn!

Grass plug out of grass area in the center of the dead zone ring.

The picture above is a close up of the above plug.

Clearly, this year long test has proven the ability of BioVam Mycorrhiza to raise the health of your turf and its biosphere. Your grass is the "living being"; your soil is its environment. Where once there was an unsightly scar, now a lush and beautiful naturally green BioVam Grown lawn is thriving. We at T & J Enterprises think that this is how all Fairy Rings - and lawns -  should look!

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