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Abstract
Excerpt from the report Introduction: The U.S. Department of Agriculture recognizes that all measures for controlling weeds must be used to reduce losses in crop production. Integrated weed control programs must include time-tested control measures, such as cultivation, mowing, burning, use of weed-free seed, crop rotation, and fertilizer practices, as well as herbicide control measures. Some biological controls have been developed and integrated into the programs; others are being developed. In the foreseeable future, however, herbicides will continue to hold the greatest promise for checking and reducing the losses caused by weeds in many programs of production. The current survey has been designed to provide more precise basic information on the economics, costs, and effectiveness of herbicides and the weeds against which they are used.