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Cordova, Alaska

Project Profile: Cordova, Alaska


• Outcompeting invasive weeds.
• 2:1 to 1:1 steep slope.
• 5” rain event two days after install.


Bohemian Knotweed is an invasive species that can take over an area, choking out existing vegetation and leading to erosion as the better suited species are displaced. Such was the case in Cordova Alaska, situated on the southeastern end of Prince William Sound. Eradicating the knotweed and establishing desired vegetation quickly was neces- sary to halt the advance of the destructive knotweed and restore the area.


The Plant Materials Center was contacted to create a solution that would meet the restoration and eradication goals. Casey L. Dinkel and Phil Czapla designed a seed mix custom tailored for the unique micro climate found in the project location.

Seeding Mixture: Application rate of 1.5 lbs per 1000sq/ft

• Arctagrostis latifolia – Polargrass – 60%
• Deschampsia cespitosa – Tufted Hairgrass – 25% • Festuca rubra – Red Fescue – 10%
• Lolium multi orum – Annual – 5%

A slow release organic fertilizer with a 25% turkey manure base was also used to ensure the plants established quickly in preparation for the long winter.


After removing the knotweed and installing rock to drain the naturally occurring seeps, the slopes were re-contoured to a 1:1 – 2:1 nish grade. Biotic Earth was applied at a rate of 3000lbs per acre and then covered with a bonded ber mulch to ensure the seed, fertilizer, and Biotic Earth were kept in place during erosive rain events. The design was tested by Mother Nature within 48 hours by over ve inches of rainfall over a two day period. With no impact to the installation, the successful eradication and restoration is well under way. The long term nutrient cycling provided the Verdyol Biotic Earth will be fundamental is supporting the desired species and preventing the re-emergence of the invasive knotweed.

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Indiana Veterans’ Home Slope Repair

Indiana Veterans’ Home Slope Repair, Lafayette, IN


• Steep Slope

• Previous failed revegetation attempts

• Placing topsoil a safety concern.

• Native seed mix

• No fertilizer used


In the spring of 2011, officials at the Indiana Veterans Home in Lafayette, IN decided to repair a severe slope failure that had occurred on the property. The failure left them with a severe 1.8: 1 slope to repair.

Revegetating with native plants can be highly effective when two key components are recognized: their need for lower nitrogen in the soils to inhibit unwanted weed growth and their need for increased soil microbial activity.


The engineering firm of Lawson Fischer contacted D2 Land and Water Resources for suggestions on how to vegetate and stabilize the site. The slopes were so severe that there were safety concerns with placing and keeping topsoil on the slope. In the place of using topsoil on the project, D2 Land and Water recommended utilizing Biotic Earth Black, a Biotic Soil Amendment (BSA), applied at a rate of 4,000 lbs. per acre, as well as Earthbound Scientific at a rate of 175 lbs.

In June of 2011 Biotic Earth Black was applied over the existing subsoil. A native seed mix was mixed and applied at the same time as the Biotic Earth, thus allowing for a one step process. The contractor then covered the material with a permanent turf reinforcement mat (TRM) with a coconut fiber component- useful in regulating temperature and moisture for the seed. The TRM provided immediate protection from the erosive forces that could affect the slope, and the Biotic Earth Black provided the organic material, beneficial bacteria, and soil mycorrhizae the plants needed to thrive on the site. The TRM was anchored to the slope using 3’ lengths of rebar.


By the fall of 2011, the native plants, which normally can take up to three years to fully establish, had begun to fill in and stabilize the slope. Germination rates of the various plants were observed to be higher than what was normally expected using that native seed mix. Since the fall of 2012, the site is fully covered in dense vegetation, which combined with the TRM, protects the slope from the threat of erosion and slope failure.

This project also shows that in areas where topsoil is not practical a soil amending approach utilizing a Biotic Soil Amendment such as Biotic Earth is a successful solution.

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Sunset Farms Landfill – Manor, TX

TRM Project Profile: Sunset Farms Landfill – Manor, TX


• Poor vegetation results with fully synthetic TRM.

• Extremely long slopes.

• Extreme heat during installation and seeding.

• Green TRM required.

• 16’ width ideal for site.

Sunset Farms landfill before germination. Coconut blankets can be seen on the downslope side of berms. Installation Summer and Fall of 2016.

PS42 Installed on upslope of berms showing the straw included in the matrix- vital for heat mitigation and moisture retention.


Previous attempts to revegetate using a fully synthetic TRM (Turf Reinforcement Mat) on other areas of the Sunset Farms Landfill in Manor, TX (just outside of Austin) had not reached satisfactory density vegetation for Republic Services.


A solution of using PS42 manufactured by ECBVerdyol, a permanent TRM that has a biodegradable matrix added to the permanent fibers, was suggested by Justin Hitchcock of JTEX Contracting and Larry Hans and Joel Denofrio of Innovative Soil Solutions for the current 105 acre portion of the project. All vegetated shear stress values are determined by testing only on the permanent fibers in the product – so long term design strength is not of concern with a product such as this with a biodegradable component. The addition of the biodegradable straw fibers to a synthetic TRM is vital in such hot dry climates. They significantly moderate the evapotranspiration rates, prevent the mat from heating up to a point where it could impede seed germination and expression, and holds moisture in the seed bed better than their fully synthetic counterparts.


Vegetation results far exceeded those achieved on the other portion of the site that had utilized a fully synthetic TRM. Especially in the areas installed and seeded during the hottest part of the Central Texas summer. The reduction in heat and the increase in the moisture retention was of significant benefit to re-vegetating the site.

Notes from the Field: 5 Common Installation Errors with Erosion Control Blankets

Installation error is a common problem for rolled erosion control products. Engineers and specifiers spend an inordinate amount of time dictating what product to use, where to use it, and how to use it- but often leave the installation instructions to: ”per manufacturer recommendations.” And we manufacturers DO have very specific recommendations! But unfortunately they are often sitting serenely on the manufacturer’s websites or in a binder at the distributor’s office- not out in the field when the product is actually getting installed.

I spent ten years in distribution before coming to work for ECBVerdyol and have seen this issue crop up over and over again. In that time I personally fielded calls or worked on projects where:

  • Crews unrolled, picked up, and flipped over single net erosion blankets. They complained that having to do that cost them a lot of time in the field. The real issue? They installed 4 acres of product upside down.
  • No toe ins installed at the top of a slope because crews can install much faster without it- I can’t tell you the number of times I’ve seen this one. Manufacturers have no desire to slow down installations for our own sake- we recommend toe-ins to prevent water from undermining the blanket and sliding beneath. We recommend it to anchor product to the surface- it’s pretty danged important.
  • Reverse shingling of blankets. Oh boy- that’s a big one. If you shingle a slope incorrectly every seam is a point where water will undermine your erosion control- the same way as if you shingles a roof backwards. This one again is a huge and common problem.
  • “Hi. I’d like to return this pallet and a half of staples- you sold us too many for our project.” How many times had I heard that one? The number of staples sold were per the manufacturer recommendations… which the crews didn’t follow obviously. I’ve seen woven TRM billowing up on a site in high wind due to the gross under installation of staples. If air can get under that product and push it up like that you can be sure that water can do the same.
  • I’ve seen TRM installed over tree stumps, grass clumps, and bushes in a channel.

We think it’s funny a bit, right? And it can be- to picture that poor crew picking up and flipping blankets all day in an attempt to do their job correctly… unknowing the problems they create by being wrong in their assumptions. That last example looks like it should cause a good chuckle, no? TRM installed over bushes… ridiculous! But that project had a torrential downpour before that installation could be fixed and all product washed out. The contractor was at fault, and so had to replace $45,000 of material. It resulted in a lawsuit. That contractor is no longer in business. And the product that washed out? Even though the TRM was not the problem, installation error was, and that TRM got a reputation in that market for “not working.” It was years before it was used in that market again. One project. One incorrect installation- it can have truly disastrous results.

We sometimes take RECPs (rolled erosion control products) for granted in this industry since we’re so familiar with them… but just because many of us know them backwards and forwards doesn’t mean all installation crews do as well.  Installation error is one that occurs in the field- far away from many of our offices.

This is a problem we know about here at ECBVerdyol- and one we put real effort into trying to correct. Every single roll of our product includes installation instructions. We try to ensure that proper technique is literally in the crew’s hands on the site at the time of installation. Each and every time. For each and every roll. It is our commitment to help solve this common problem.

Lauren Alaniz
Sales Manager

Two Great Brands Grow Together as ECBVerdyol


Riverton, Manitoba – January 20, 2017 –ErosionControlBlanket.com and Verdyol Plant Research are pleased to announce that merging of their operations, resulting in the launch of a single, more customer focused brand, ECBVerdyol.

“ECBVerdyol represents the bringing together of two strong organizations, and an incredible depth of established products”, said Mark Myrowich, CEO, ECBVerdyol. “As a unified company, we’re able to provide one central point of contact for our customers and collectively build upon our reputation as one of the most innovative companies in the Erosion and Sediment control industry.”, said Myrowich. Founded in 2001 by Myrowich, ErosionControlBlanket.com produces erosion control blankets, Stenlogs, Rifle M100 Staple gun and Factor T staples from its Riverton, Manitoba manufacturing facility for distribution throughout North and Central America.

Verdyol was formed in Switzerland in 1971, and was responsible for developing the first patent on a cotton and agriculture fiber hydromulch. ErosionControlBlanket.com acquired the rights to the Verdyol name in North America in 2004, with the acquisition of Verdyol Plant Research. Verdyol manufacturers Biotic Earth, the leading biotic soil amendment that provides a proven biotic soil enhancement to poor soils.

ECBVerdyol will be in attendance at the Atlanta Georgia IECA Environmental Connection conference, scheduled for February 23-24, 2017. “We hope attendees will stop by our booth and learn more about these exciting changes, and ECBVerdyol family products that includes erosion control blankets, fiber rolls, hydraulic straw mulch, biotic soil amendments and the Rifle M100 Staple gun.” Said Myrowich.

PS42 8′ Big Daddy Roll


PS42 8′ Big Daddy Roll

Our highest performing TRM in a 8 foot wide 300 square yard roll. Perfect for long channels that have a 4 foot or less bottom.

Permanent Double Net Turf Reinforcement Mat (TRM)

Category Commercial Color of Net Black, top and bottom Width
8ft 2.44m
Product Name PS42 ECTC Description Permanent
Product Description Turf Reinforcement Mat (TRM) ECTC Category Type 5.A 5.B 337.5 ft 102 m
Matrix Fiber 100% Synthetic AASHTO / NTPEP Tested YES Area
300 yd2 250.8 m2
Matrix Fiber Weight 0.75 lbs/yd2 (400g/m2) Meets Requirements FHWA FP-03 Section 713 Types 5A & 5B
Number of Nets 2 – Top and Bottom Roll Type Standard Rolls/Pallet 16
Netting Degradation Permanent * Longevity > 36 months Pallets/Truck 26

* Blanket functional longevity is approximate and dependent on environmental extremes and site specific conditions.

No warranty for the accuracy of product image or description.

Item Code: P42 8′ Big Daddy Roll

Specifications PS42

Ways to Control Soil Erosion

Soil erosion is one of the major problems faced by the farmers.

The level of soil erosion can be determined by 2 factors. First, how much rain or wind the area experiences on a daily basis. Second, how good is the vegetation or plantation in that area. As it is not possible to combat against the power of rain or wind, you can use certain ways to prevent soil erosion.

Here are a few soil erosion control ways that can help you reduce the damage caused by soil erosion:

1. Plant vegetation: By plantation of trees, shrubs, and ground cover, you can control soil erosion to a great extent. The practice becomes more effective in the areas where there is a lot of damage due to soil erosion. The roots of trees and shrubs actually help in keeping the soil intact and controlling soil erosion at the same time.

2. Use of mulch: Mulch not only keeps the soil cool, rather it helps in controlling soil erosion by properly covering the top most layer of soil. Not only this, mulching also helps to reduce the impact of rain and wind and hence serves as one of the best methods of preventing soil erosion.

When you are troubled with soil erosion in your garden, using the above soil erosion control ways is a smart option.

How to Test Your Soil

Do you know whether the soil in your garden is healthy or not? You can learn it by simple observation.


If your soil is compact, it will take in some water but it will be difficult to dig, and the plant roots will automatically spread in the side direction instead of the downward direction. If you are still unable to determine whether your soil is healthy or not, look for soil insects, earthworms, and vigorous roots. This would give you good clues to know your soil composition.

However, while observation can help you know much about your garden soil, there is yet lot more that is not visible. In order to assess the levels of soil acidity, and the need for any amendments, you can conduct an appropriate soil test at home with the help of a test kit. Once the result is achieved,  you can send a sample of the result to a reputable soil laboratory. This will be a much simpler, and inexpensive process that will help you to determine the exact status of your soil. .

If you are facing any problem related to soil, follow the above tips to test the quality of your soil or you can also look for professional help to improve the quality of the soil.

How to Install Verdyol Virgin BFM

Among the new products we offer at Verdyol Biotic Earth is Virgin BFM. This is a stable product that offers hydro-seeding through a thermally refined product that creates sturdy vegetation establishment and maximum performance. Using this product offers a high rate of cover and hydraulic mulches that are almost completely carefree. When using the product, it helps to know how to correctly apply it so that the best results are possible.

Preparing the ground is highly important when using these erosion control products. By making sure that the soil is stable and de-compacted, it is possible to ensure the seed will fully penetrate and take root. The soil will need to be tested to assure it has the right organic quantity. If not, certain adjustments will need to be made using a hydraulic growth medium.

Once the ground is prepared, it is time to start with the actual installation process. You will need to make sure that you have a 50-degree tipped fan type nozzle to spray the mix slurry at a continual rate at the proper pressure. This will make sure that the soil is covered appropriately.

The hydraulic mulch will need to be mixed with about 125 gallons of water to every 22.5kg bag. Make sure to follow the instructions for mixing carefully so that the product is ready for distribution in an even manner. By making are that there are no obstructions through purging, the mulch will broadcast evenly.

When applying the Verdyol Biotic Earth hydraulic mulches, it is essential to make sure a double-sided application is being administered. The best way to do this is from the top of the slope and the bottom of the slope. If access to the top of the slope is not possible, a backwards and forwards application can assure that all angulations are achieved.


Looking Back at Milner Ridge, Five Years Later

The erosion control products we offer at Verdyol Biotic Earth have been put to the test in some seriously strenuous environments. When we first encountered Milner Ridge, the entire area was nothing more than extremely loose sands prone to erosion at a very fast rate. To prevent erosion, we stepped in to provide the hydraulic mulch the area needed to reclaim the ground and offer protection against the possibility of serious loss.

We laid down S31 and S32 straw erosion control blankets along with hydraulic mulch and seed. Once water and fertilizer were added in, some very good results emerged. Grass and legumes were able to reclaim land in as little as one year. The grass did not last past the first year, but the legumes provided their nitrogen-fixing properties to the soil and made a big difference in the overall outlook of the land.

To date, there has been no erosion at Milner Ridge and the Verdyol Biotech hydraulic mulches are very much responsible for this. Grass has returned to the area, which has attracted deer to the area for grazing. Thanks to the deer, natural fertilizers are being added to the nutrient levels of the area and soil building is occurring naturally.

The Milner Ridge project is a very good example of how our erosion control products can protect even difficult to maintain areas from being prone to erosion. The various Verdyol Biotic Earth hydraulic mulches we offer help to promote natural growth that will maintain erosion protection over the life of the area. By promoting natural growth of vegetation, it is no longer necessary to replace topsoil or conduct other unnatural means for maintaining the environment. Nature has taken over with sustainable vegetation for natural erosion control.

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