This will reduce your exposure to the toxic chemicals and save you money. Instead of spraying your entire lawn, focus your sprays in the weedier areas of your lawn, spraying the weeds themselves. Herbicides sprayed in spring will not be as readily transported through a weed’s root system. If sprayed in fall, the weeds will naturally send the herbicide, along with their nutrients, down into the roots. In fall, weeds naturally channel their nutrients down into their roots in preparation for winter. The key to killing weeds is to get the herbicide down into the roots. Herbicides are most effective when used in fall (not in spring). Use them only when necessary, and then only when most effective. These herbicides, including Milestone and Tordon, will kill weeds in residential lawns, but they may also damage trees, shrubs and other plants in your landscape. Herbicides that control weeds in pastures and rangeland are commonly used in rural areas of North Dakota. This is all the more reason why herbicides should be limited in their use. These formulations are powerful but also poisonous.ĭicamba is particularly effective, but it can persist in the soil and cause damage to nearby trees, shrubs and perennials. Quinclorac is a recent addition to many broadleaf weed formulations. These products consist of a combination of three herbicides (2,4-D, mecoprop and dicamba). The most effective broadleaf-killing herbicides for lawns are Trimec formulations. The best course of action is to focus on maintaining an attractive and healthy lawn with a judicious use of herbicides: Choose the right herbicide.ĭandelion, as well as clover, thistle and ground ivy, are broadleaf (non-grassy) weeds. A single dandelion plant can produce over 2,000 seeds! Killing one dandelion is easy, but killing all of them is nearly impossible and a never-ending battle.
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