

This is true whether you’re spot-treating a small area - for example, a small bunch of clover in your lawn - or if you are using it to treat your entire lawn or pasture using a backpack sprayer. Mid to late morning, after the dew on your lawn or pasture has evaporated, is the best time of day to apply 2-4-D weed killer. You can buy 2-4-D Weed Killer online here at Applying 2-4-D At Different Times Of The Day Whoever said that taking pride in keeping your lawn in pristine condition and as weed-free as possible wasn’t a labor of love? I find that applying a second treatment of 2-4-D in spring while the weeds are relatively small also serves to eliminate a bumper crop of pesky annual and biennial broadleaf weeds for the duration of the summer. It is no secret that weeds are notoriously opportunistic plants that seem to just appear in your lawn and pasture from nowhere and at any time (not just in the fall). Boom!įor a belt and braces approach to weed control in my lawn and pasture, I also apply 2-4-D in spring. The 2-4-D herbicide that is sprayed on the roots of these weeds is quickly absorbed and then carried to the roots faster than at any other time of the year.

During this time, they shift energy from their leaves to their roots.
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Administering herbicide at the beginning of the germination period is a good way of controlling and preventing weed life cycles before full growth commences the following spring.Īnother reason I advocate for fall as the best time of year to apply 2-4-D is because this is the time when perennial broadleaf weeds are preparing for winter. The process of germination takes place in fall and winter before the usual active growing season in spring. There are a few reasons for this.įirst, annual winter weeds begin their life cycle in late summer. If I could only apply 2-4-D weed killer once per year, it would be during the fall. Let me share with you exactly why that is. Weeds either need to be actively growing or very young for 2-4-D to have the biggest impact and longest-lasting effects. Likewise, anything lower than 60 degrees will reduce the effectiveness of this weed killer. 2-4-D is known to have little impact on killing weeds in summer when the weather is warm because the herbicide tends to evaporate quickly, especially in temperatures over 90 degrees.

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I have found, after much trial and error, that the best time to apply 2-4-D-based herbicides is in the spring and the fall. When To Apply 2-4-D Herbicide For The Best Results Now that I know, I thought I’d share my knowledge with all you like-minded lawn-lovers out there as well. It’s taken me a while to get on top of controlling the weeds in my lawn and understanding when the best time to apply 2-4-D herbicide is. Now you need to get a handle on when the best time to apply it is. So you’ve heard that 2-4-D is one of the best selective herbicides on the market to rid your lawn or pasture of broadleaf weeds.
