There are also several ingredients in Weed and Feed that will help your lawn grow. Unlike pre-emergent herbicides, it does not need water to activate its properties.

They are post-emergent herbicides, meaning that they kill weeds above the ground. These two ingredients make up the “ Weed” part of Weed and Feed. It poses fewer risks than other herbicides, like glyphosate, but it is still classified as slightly toxic. It gets inside plant cells and kills broadleaf weeds, but has minimal impact on your lawn. The next prominent active ingredient is mecoprop-p, which works in the same way as 2,4-D. This means that half of the chemical will have broken down in the soil within a maximum of two weeks. It has a pretty short half-life of 1-14 days. You can use it to kill broadleaf weeds, but it does not affect grasses like other herbicides will, such as Roundup. It works by damaging the cells inside plants that are responsible for transporting water and nutrients. Weed and Feed has the following active ingredients:Ģ,4-D is an auxin-type herbicide. Before you can decide when to apply this product, you should first understand how it works. There are many brands of Weed and Feed, so let’s take a look at the classic: Scotts Turf Builder Weed and Feed. 4 Using Weed And Feed Before Rain Or After Rain: The Verdict.3.6 Is It OK To Put Fertilizer On Wet Grass?.3.5 Will Fertilizer Burn Grass If Not Watered?.3.4 Is It Better To Fertilize Before Or After Rain?.

3.3 What Happens If It Rains After Fertilizing?.3.2 Is It OK To Fertilize Before It Rains?.

3.1 How Long Does Herbicide Need To Be On Before Rain?.

2.2.4 Use Broadcast Spreader For Granules.

2.2 How To Apply Weed And Feed After Rain.

2.1 How To Apply Weed And Feed Before Rain.

Scotts southern weed and feed