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r <br />How WeedBlock 6 + ^ blocks light, but lets water through <br />The patented micro-tunnels taper at the bottom <br />to block 94.2% of the available light. However, <br />because the space between the funnels is rounded, <br />water runs 'reeiy through <br />Effect on weed control <br />Expect approximately 95«ib control of normal .veed growth. Nearly all brcadleaf weeds and most grasses are controlled. <br />Weed growth uro^ -at is minimized due to the high light-blocking effect of WeedBlock 6 Weed seeds that do <br />germinate lack -he r th requ/ed to jh through the fabric. <br />Weed growtfi on top u- .^e fab- •: is minimized because WeedBlock 6 will not absorb or hold moisture. This also results m <br />less soil compacton. And. unlike fuzzy or cloth-like materials. WeedBlock 6 ' is not a good rooting medium. <br />Weed seeds blown into the area may germinate m the bark or mulch above WeedBlock 6-»-■•. Generally, these are easily <br />remove!.: due to poor root development. Weed seed germination m the mulch can be minimized by using large chunk bark <br />rather than shredded or fine mulch. <br />( <br />c <br />Maintenance required <br />Generally, only tw(Tcircumstances occur that require maintenance.- <br />1 If a fine organic mulch has been used, it may decompose to form a layer of humus. This results in an increased number of <br />weed seeds germinating on top of the fabric. If this occurs, the decomposed mulch should be removed and replaced. <br />2. Although some rhizome grasses such as bermuda are capable of penetrating all fabrics, normal border trimming reduces <br />rhizome spread on top of the fabric. If a herbicide treatment is required, it will be at greaUy reduced frequencies. <br />Effect on soil temperature <br />Tests show WeedBlock 6 ~ Commercial Landscape Fabric <br />acts as a buffer to reduce the temperature variances of the <br />soil. The son without WeedBlock 6 + ” gets honer during the <br />day and cooler during the night than does the soil beneath <br />WeedBlock 6 <br />wuhoui W««dBleck • •'«nin WMdSleck • * * <br />Economics of use <br />WeedBlock 6 -i-' can be installed for about the same cost as two to three applications of herbicide. After installation, mainte ­ <br />nance cost reductions provide the payback. <br />2. Eliminate/greatly reduce cost for herbicides. <br />3. Labor cost reductions for applying herbicides and grooming beds. <br />4. Less bark or stone covering used. Where it is used, it s more for cosmetic than functional use. <br />5. Installation costs are reduced due to the ease of cutting - scissors aren't necessary - and WeedBlock 6 ' ‘s ability to con- <br />c 70^.5^. a un,ve,s,^ repons labor sa.ngs o. 8 6 <br />man hours per month per f .000 square feet of plant beds. This equals S.034 per square foot per month savings.