Weeds always seem to get an early jump on us. Before you know it, they have started growing in the lawn, flower beds and vegetable gardens. They rob plants of light, water and nutrients. But there are ways to keep weeds under control.
The safest and most effective method is to remove weeds by hand — pulling, hoeing and mulching. This works best in small areas or in areas where more than one type of plant is growing. A tiller, mower or other device can be used to remove weeds. Mowing is an effective method for removing top growth and preventing weeds from maturing.
Mulching helps suppress weeds by limiting the amount of sunlight, which is necessary for them to become established. Mulching also can help retain soil moisture, reduce soil temperature and improve the soil.
Herbicides should be your last choice for weed control. They are a short-term solution. Before using any herbicide, identify the weed you want to control. If the weed is not listed on the label, don’t use the herbicide. Different herbicides are needed to control different types of weeds.
There are two general herbicide types: Pre-emergence and post-emergence.
Pre-emergence herbicides prevent weeds from being established. These should be applied three to four weeks before the weeds normally germinate. They must be activated by rain or irrigation within a set number of days after application, depending on the herbicides. This information can be found on the label.
Post-emergence herbicides are applied after the weeds are established. Weeds must be actively growing when the herbicides are applied.
Herbicides normally work best when weeds are young.
Booker T. Leigh is extension director at the Tipton County Extension office. Email your gardening questions to bleigh1@utk.edu. Include your name and the area where you live. For more gardening information, call the Tipton County Extension office at 901-476-0231 or the Shelby County Extension office at 901-752-1207.
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