According to the Trimec label, the herbicide should be applied in spring or early fall when weeds are actively growing and temperatures are below 85 degrees Fahrenheit and rain is not expected for 24 hours after application. Trimec is a post-emergent herbicide that controls broadleaf weeds.
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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.