Windblown particles are controlled by a porous tubular control device formed
from a sheet of netting material having a plurality of interconnected webs which
define a plurality of apertures. The sheet of netting material assumes a three-dimensional
tubular configuration. The tubular configuration is oriented to confront the wind
and cause the wind blown particles to flow through the apertures of two vertically
oriented portions of the tubular netting sheet to create aerodynamic drag and turbulence
altering effects which stabilize, deposit and retain the windblown particles. The
control device is effective in preventing the wind erosion of snow, sand or dust
over an area much greater than the area occupied by the device.