Boost tomato crops 20% to 30% with this bright red 1 mil embossed film. Like a black mulch, it warms the soil and retains moisture, but the red film also reflects far-red wavelengths up into the plant stimulating plant development. Tomato Results are earlier and increased yields of 12% to 20%. Preliminary studies also show significant increases in strawberry yields with the use of SRM-RED. Not recommended for use in warmer southern states.