"If you're not allowed to spray these chemicals on your lawn, why are they so easy to buy? Seven years ago, the Halifax Regional Municipality passed a bylaw that made it illegal to use chemical pesticides in residential gardens. Dandelion killers, crab-grass killers, mushroom killers, broad-spectrum herbicides and many others were banned. Health activists celebrated, thinking they were seeing the start of a new era. In a way, they were right. Today, 135 Canadian towns and cities have similar bans in place. But here's the strange thing. Across the country, the flawlessly green lawn remains a common sight. Pesticide products that are illegal to use are still for sale. And, as Wendy Mesley's hidden-camera investigation reveals, some of the country's best-known stores are sending mixed messages."--Container.