News editors obtained the following quote from the background information supplied by the inventors:“Gravel driveways and pathways are a lot cheaper than block paving, good for drainage, and look betterthan and more ecofriendly than imprinted concrete. However, gravel pathways and driveways that havelight traffic or are neglected can quickly become overgrown with weeds and grass. The same issue is presentfor sports courts, such as tennis courts, Petanque courts, and the like. Weed killers, like glyphosate, maybe used, but is not very ecofriendly. That leaves one to remove the weed by hand and to prevent the weedfrom emerging by disturbing weed seeds from germinating by raking the surface. However, this is hardwork.”
NETL
NSTL
