Although tall fescue seed does not survive long on the soil surface, usually less than one growing season, shattered and buried seed and roots and rhizomes may retain viability for several years. Therefore, it is essential that all existing E+ tall fescue plants and seed be killed with mechanical and/or chemical fallows. When using chemicals, there may be residual effects on germinating seed; the product label cautions for potential residual effects should be consulted. In New Zealand and Australia, the most common weedy grasses to eradicate are ryegrass and winter annual grass species, but similar systems can be used to prevent weed contamination.

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