Metallic Silver Mulch 1.0mil (4' x 4000')
This highly reflective metallic silver mulch, made of 1.0 mil thick HDPE (high-density polyethylene plastic), disorients and repels insects such as thrips, aphids, flea beetles, and white flies by reflecting light of a particular wavelength and illuminating the normally shady underside of the leaves. With a black co-extruded bottom side, it suppresses weeds and retains moisture, but will also cool the soil from -2 to -6°F less than black plastic. Its inherent reflectivity also causes the canopy to absorb more light, resulting in up to 20% higher crop yields for particular crops, such as peppers.
In studies at the University of California Kearney Ag Center, tests show that plants grow better and more rapidly over reflective mulch than ones without any mulch. Both harvest yields and coloring of fruit increased with silver mulch. Silver mulches reflect sunlight up into the undersides of the canopy thereby increasing photosynthesis, leading to rapid growth. Mulches in general also hold temperatures at consistent levels.
In another study by the same group, aphid and whitefly numbers were lower in plants grown on reflective mulches. Reflective mulches were also shown to lower the numbers of cucumber beetles by 6 times in a study written up in Hort Technology. Apparently, insects are confused by the amount of sunlight being reflected up by silver mulch, so they are less likely to land on these plants. Silver mulch is also effective in weed control and temperature control and prevents snails from crawling across it if the shiny side is laid up.
Unit Ship Weight: 60 lbs.