Before an annual fundraiser he holds in his large backyard, a Minnesota man headed to the local garden center to pick up some weed killer in order to pretty things up. He spent $175 on five bottles of product from the company Ferti-lome. But the product he chose has a cousin in a similar bottle that doesn’t just kill weeds: it kills every plant in sight, then stays in the soil and prevents any plant growth for about six months. Guess which formula the garden center sold him? [More]