Yard Doctor: Midwest & Northeast

Quack grass (Agropyron repens)

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Quack grass (Agropyron repens)What does it look like?

A weed that loves the winter, quack grass actually spreads its rhizomes during the winter. With spring, this dull-green ugly duckling sprouts coarse grass.

When, where, and how does it grow?

Favoring cool climates, quack grass flourishes in under-fertilized stands. It can quickly spread from neighboring yards, but it often hitches along with nursery stock, or contaminated mulch and topsoil. The rhizomes survive for remarkably long periods in the soil, thwarting efforts to control seedling growth.

How can we get rid of it?

Proper fertilization and effective watering are the enemies of quack grass. And the best offense is a good defense; there are no herbicides designed for quack grass. If you see a plant, remove it right away or spot-spray it with a general herbicide. In severe cases, reestablishing the lawn may be the best strategy.






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