A farm is its own ecosystem, but many conventional practices strip away the life cycle of all the creatures living in it by using pesticides. This makes sense, since crops can be decimated by the wrong kind of insect or other invader. But pesticides have created a number of problems; not only do pests become gradually resistant to the poison, the use of the chemicals can be unhealthy for workers and potentially for the people who come in contact with the produce in their food cycle.
Fast Company reports that many organic farmers are going back to older practices by cultivating an environment where natural pest predators can live. They're growing flowers amongst their other crops, creating a home for creatures like parasitic wasps, who eat aphids in their larval state. It's been a common practice to grow flowers around the perimeter of farmland acres, because it encourages biodiversity. But agriculturalists are experimenting with strips of flowers within their crops, creating a highway for bugs to travel farther and cover more ground for pest control.