5.4 Weed Control with Buffers

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Buffers are usually not a source of weeds and can be used for weed control. Buffers can trap water- and wind-dispersed weed seeds, reducing the area required for weed management. The concentration of weed seeds aids in seed predation by animals. Dense groundcover in a buffer can reduce weed germination.

DOWNLOAD: 5.4 Guidelines and References (PDF)
https://www.fs.usda.gov/nac/buffers/guidelines/5_protection/4.html