[Bonanza]

Originally Posted by kcrazorbackfan

Those lawn spraying signs alert the public that walks their dogs and grandparents that walks with their grandkids that chemicals have been sprayed on that lawn and for their safety to stay off of it.

Unfortunately, as ugly as they may be, they are necessary for a couple of days.

No, the signs are only necessary for about an hour or so -- only until the grass is dry.
If it rains right after, no problem there either.
Whatever had been sprayed is no longer on the blades of grass.