Better Reds Red Mulch Film - Red Mulch film has been university tested and proven to increase tomato yields by up to 20%. Red Mulch film has also been proven to control damaging nematodes which feed on plant roots and lower yields. Red light is reflected by the red film back to the plants which stimulates growth. The Better Reds red mulch film control soil temperature, saves water, prevents weeds and warms the soil just to name a few benefits. The red film is also great for use under strawberries, melons, peppers and other crops that fruit above ground. 8 pre-cut 3' x 3' sheets.