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Grass Seed Crops
Note: Weed control in established perennial grass seed fields depends on effective management of crop residues. If grass seed fields cannot be burned after harvest, the recommended preemergence herbicide treatments may be less effective in controlling weeds. In unburned fields, remove crop residues by baling straw, or spread straw as evenly as possible by mechanical means if a full straw load is desired. Unburned grasses with considerable top regrowth may be damaged by some fall-applied treatments made before approximately October 15.