Citation:

4 Preventative weed control. 1968. Pages 49-68. Chapter 4. In: Charles E Palm (editor). Weed Control, Principles of plant and animal pest control. Volume 2. National Research Council, National Academy of Sciences, Washington DC, 471 pages.

Keywords: weed sanitation, farm management practices, production of weed-free seeds, choice of seeds for planting, methods of cleaning seeds, clean farm equipment, management of animals, ballast, gravel, sand and soil, irrigation and drainage waters, wind-borne seeds, handling weed–infested seeds, mechanical harvesting, forage, grain, nursery stock, sod and turf, weed screenings, grain, hay, and straw, ensilage, manure, combined treatment effects on variability, legal measures for weed prevention, seed laws, federal seed laws, state seed laws, weed laws, quarantine, federal quarantine laws, state quarantine laws, seed certification