Not all lawn care products contain harmful chemicals. In 1986, Nick
Christians, an Iowa State University horticulture professor, discovered
that corn gluten kills dandelions and other weeds. This environmentally
safe alternative uses the byproduct of processing corn into syrup,
starch and ethanol, and poses no risk to other plants or animals.
In fact, corn gluten is also the main ingredient in Purina Dog Chow!
Right now, the only drawback is that it costs about twice as much
as traditional lawn care products. But as more ethanol plants are
built, there should be more gluten to go around, bringing the price