How to Control Erosion in Your Yard | Lowe's
Erosion control wattles are manmade fiber tubes, usually filled with compressed straw, that trap sediment, control water runoff and prevent erosion. Riprap is rough, loose stone (at least 6-8 inches wide each). The stone, usually granite, is embedded into or spread loosely onto the slope. Riprap slows and diverts flowing water.