Sprayable non-woven fiber weed barrier

A solid, porous barrier:

• wherein the solid barrier is formed by spraying an aqueous solution of nonwoven fiber macroscopic particles and polymer binder;
• wherein, the weight percent of the macroscopic particles in the aqueous solution is about 10% to about 90%;
• wherein, the solid barrier contains pores ranging in size between about 0.01 mm and about 1 mm;
• and
• wherein the pores of the solid barrier are formed after contacting the aqueous solution with a surface and allowing the aqueous solution to solidify by curing under ambient conditions;
• wherein, the macroscopic particles in the solid barrier form a random orientation of fibers;
• wherein, the macroscopic particles have an average length of between about 100 microns and about 1000 microns;
• wherein, the barrier contains no visibly apparent voids or holes;
• and
• wherein, the formed barrier is sufficiently porous to allow air to permeate and sufficiently solid to be a physical barrier to non-gaseous materials.