Applying or spraying broadleaf weed killer near cedar trees may harm them, according to Texas A&M University Department of Horticultural Sciences. While broadleaf herbicides are made to kill specific weeds, the strong chemicals they contain may still injure desirable trees or other vegetation, according to DuPont.
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.