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Prevention Control

          Compared to other control methods, prevention is the easiest and least expensive. Unfortunately, it is often overlooked or considered a bother. By suppressing the spread of weeds we can concentrate available resources on existing weed populations. Ignoring this method will only allow a hundred new weed populations to grow while we work on controlling the one.

          Prevention is a cooperative effort on everyone's part. The time required to do the following may save millions of dollars and prevent an untold amount of environmental damage.

Preventative Measure

Agriculture
• Weed-free seed 
• Competitive crops
• Crop rotation and diversity
• Clean equipment
• Management of feed and manure
• Spot control new plants
Rangeland Grazing
• Proper stocking rate
• Proper seasonal use
• Prevent animal seed dispersal from infested to non-infested areas
• Manage for good range condition. A healthy plant community is less likely to be invaded.
Recreation
• Clean off clothes and gear
• Clean pets and stock animals
• Clean vehicles
• Learn to recognize weeds and report them
• Tread lightly: disturbed areas invite invasion
Social/Government
• Laws and enforcement
• Organization
• Education
• Control seed source: wind-blown and waterways
Biological Cultural Herbicide Mechanical/Physical