Dandelions and other weeds are best controlled with an herbicide that contains 2,4-D, according to the University of Minnesota Extension. This ingredient is found in broad-leaf herbicides such as Barrage, Plantgard and Weedtrine-II.
About this Author
Aileen Clarkson has been an award-winning editor and reporter for more than 20 years, earning three awards from the Society of Professional Journalists. She has worked for several newspapers, including "The Washington Post" and "The Charlotte Observer." Clarkson earned a Bachelor of Arts in journalism from the University of Florida.