Winter Weeds in the Lawn
El inglés es el idioma de control de esta página. En la medida en que haya algún conflicto entre la traducción al inglés y la traducción, el inglés prevalece.
Al hacer clic en el enlace de traducción se activa un servicio de traducción gratuito para convertir la página al español. Al igual que con cualquier traducción por Internet, la conversión no es sensible al contexto y puede que no traduzca el texto en su significado original. NC State Extension no garantiza la exactitud del texto traducido. Por favor, tenga en cuenta que algunas aplicaciones y/o servicios pueden no funcionar como se espera cuando se traducen.
English is the controlling language of this page. To the extent there is any conflict between the English text and the translation, English controls.
Clicking on the translation link activates a free translation service to convert the page to Spanish. As with any Internet translation, the conversion is not context-sensitive and may not translate the text to its original meaning. NC State Extension does not guarantee the accuracy of the translated text. Please note that some applications and/or services may not function as expected when translated.Collapse ▲
The months of February, March, and April each year include many contacts by local residents expressing concern about weeds in their lawns. The first question usually asked is, “What should I spray to kill these weeds?” Chemicals are not the only option for managing weeds.
A lawn that is mowed at the proper height, aerated at the proper time, fertilized at the correct rates and times, and watered sufficiently will have fewer weeds. Weeds in a lawn indicate poor growing conditions for the grass.
Proper lawn care and a healthy lawn are the best ways to prevent weeds. Step one is to do a soil test to determine the needs of the turf. The North Carolina Department of Agriculture and Consumer Services is currently charging $4 per soil sample. The fee will continue through March 31, 2019. Soil boxes, paperwork, and information are all available at the N.C. Cooperative Extension of Lenoir County office at 1791 Hwy 11 & 55. Call the office at 252-527-2191 for more information.
Step two is to match the growing conditions to the best-suited turf. The recommendations for each turf are available in the publication Carolina Lawns. Turf grasses vary in the recommended fertility, soil pH and mowing height as well as temperatures. If an area is shaded, on a slope, or in a wet depression, grass may not be the best choice. Moss indicates excess shade, poor drainage, and compacted soils. Consider landscape options other than grass. Ornamental ground covers can be used for shaded areas and slopes.
Winter annual weeds start to germinate in September, grow slowly through January, and begin rapid growth and flowering in February and March. If you wait to control them until February, March, or April, most weeds have grown large enough that control is limited without costly and time consuming repeated applications. As flowers and seeds are formed, they are dispersed into the landscaping where they can remain for years. Mowing lawns to remove flowers of winter annuals will help reduce the formation of seeds.
When weeds occur in small numbers, pull or dig to remove the entire plant, including the roots. Where weeds occur in large numbers or are difficult to control, herbicides can be used to manage weed growth while cultural practices are improved to develop healthier grass.