“We found that small-scale restoration..

“We found that small-scale restoration in intensive agricultural landscapes can enhance some natural enemies, both in edges and in adjacent crops, while decreasing pests in edges and adjacent crops,” the authors wrote. The reduction of crop pests such as aphids wrought by the predatory insects attracted by the hedgerows reached 200 meters into the fields, which, considering that the plantings observed in the study were approximately 400 meters by 400 meters, is dead center. Simply changing what grows along the edge of a field—which can also help control dust, erosion, and other issues—helped provide pest control for the entire crop.