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Harvest Weed Seed Control

Combine harvesters disperse weed seed, spreading weed seed within a field and from field to field. Harvest Weed Seed Control (HWSC) removes or kills weeds seeds that are retained on weed plants at the time of crop harvest. HWSC can reduce the soil seed bank and thus future weed problems. It can also aid in herbicide resistance management, by killing or removing seeds produced by weeds that escape herbicidal control. HWSC has proven effective, economical, and adoptable in Australian grain production. Little research has been conducted in the US. This publication presents research results of HWSC on three driver weeds in Virginia: Palmer amaranth, common ragweed, and Italian ryegrass. The publication also presents pros and cons of HWSC and tips for implementation. 8.5 x 11, 5 pages, DS, color, 24#, single staple upper left

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