Quest Diagnostics. R J Lee Group Inc. Regional Media Laboratories. Roche Biomedical Laboratories. Sampling Associates International. Harbor Access Road, Show full details.
Schnabel Engineering Associates. Schneider Laboratories In. Scientific Testing Labs Inc.
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Shenandoah Bacteriological Laboratories. Si-Tech Testing Laboratory. Slyvan Technology Ctr. Soil Consultants Inc.
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Spectrum Laboratories. Sylvan Technology Ctr. TC Consultants Inc. Testing Technologies Inc. Norfolk, VA Ph1: Work Smart, Inc. Nationwide Subsurface Imaging Company.
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Blue Ridge Geological Services, Inc. Beatty Environmental inc. Stack Testing Services. An important component of a great looking, healthy lawn is choosing the best species and cultivars available.
For a list to have any validity, multiple years of successful field performance are required. These trials are replicated at several locations around the country and performance data are always available on-line at www. Very specific variety data on pest pressure, leaf color and texture, tolerance to environmental extremes, etc. These trials are conducted under specific guidelines for maintenance and they last for approximately six years in hopes that Mother Nature will present plenty of environmental and pest challenges to the varieties to see how they respond and differentiate from each other.
We have essentially two categories of recommendations on the Virginia list: Recommended and Promising varieties note: there also are additional comments regarding blends, mixes, and specific species. To be eligible for consideration of making the list, the variety must be named and available as certified seed, sprigs, or sod. Next, it must be tested at sites in both Virginia and Maryland.
Finally, it must perform well relative to other varieties for a minimum of two years to be considered Promising and three years to make the list as Recommended. Even with an outstanding performance record, we still suggest that you blend multiple varieties from the recommended list for cool-season grasses such as tall fescue, Kentucky bluegrass, and perennial ryegrass. This practice further broadens the genetic diversity of these species. The more genetic diversity you have in your lawngrasses, the more likely the turf will survive a pest or environmental extreme.
Color especially dark green continues to be one of the most important considerations. So, you might want to take a look at the complete NTEP data report online and see how some of the recommended or promising cultivars compare in terms of genetic color i.
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Fortunately, many of the specialty turf product stores discussed later do this type of thing for you. While the variety list is a great starting point towards developing a healthy, environmentally friendly lawn, it is obviously not a guarantee to lasting success with the lawn. Choose appropriate species for your specific situation while considering your climate, soil, light, desired maintenance level, etc.
Strengths and weaknesses of the various grasses that will help you make the best choice in species possible are detailed in other podcasts on the Turf and Garden Tips website. Plus, never forget that in a Transition Zone state such as Virginia where almost NO turfgrass species is perfectly adapted, there will still be seasons where turfgrasses will struggle and maybe even die simply due to environmental extremes.
Is it easy to locate just about any recommended variety?http://thisislamu.com/kihu-google-gua.php
Unfortunately no. There are several outstanding varieties available that are not evaluated in NTEP and other supplementary university trials for one reason or another. Since we are not evaluating them, we have no basis to make a recommendation one way or the other. Most of these products contain reputable varieties from prominent seed suppliers and the minimum thing you want to do is to ensure that you purchase certified seed with a recent testing date on the seed tag.
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