We are just getting some sand put in our small outdoor arena that we are making, and I have a question about managing weeds? There are a lot of weeds in the arena, as, up till now, we've just disked the ground to make it reasonably soft for riding, and the weeds love it. If we just lay the sand over the weeds, will they grow through it? You never really see weeds growing through arena sand, but I'm not sure if that is because sand is too dense for them or because of careful maintenance. Should we spray/pull the weeds before putting the sand down? Are there any negative sides to spraying weeds in a riding arena? We don't really want to spend the money putting gravel or anything down. The sand is coming in 2 days, so please help!