spraying atrizine or spectracide

[jadeguppy]

I have dollarweeds/moneywarts spreading into my backyard and want to kill them before they spread any more. I'm thinking of using spectracide or atrizine. How long do I need to keep the chickens locked up? I don't like using chemicals in the backyard, but I hate dollarweeds!

 

[jadeguppy]

I found on the spectracide answer section of their site that chickens can go in the area after it dries, but can't find anything about the eggs.