How Long After Seeding Can You Weed And Feed

Read customer questions about Scotts Turf Builder Weed and Feed 3 and get help with Scotts Turf Builder Weed and Feed 3 After sowing your new lawn it is, keep an eye for weeds that have cultivated due to your soil being turned over or birds / the winds dropping new seed in Get your FREE Guide To Fall Seeding from the Lawn Care Nut featuring questions and answers about spraying weeds leading up to the seeding, you do NOT have to kill all the weeds at once and more now!

Scotts Turf Builder Weed and Feed 3 – Questions & Answers

Will Scotts Turf Builder Weed and Feed 3 harm my dog?
My dog eats grass sometimes. I’m concerned about my dog’s health and don’t want him to get sick or even die after fertilizing my lawn. Should I just quit fertilizing?

Scotts Turf Builder Weed and Feed 3 is safe for pets when it is used according to the product label. You want to make sure pets are not in the area while applying the product. Once the treated areas dry completely, chewing or eating grass will not be harmful and your pet can resume normal activity within the area.

It is recommended not to mow within 2 days before or after application of Scotts Turf Builder Weed and Feed 3.

It is recommended that you wait at least one month after an application of Scotts Turf Builder Weed and Feed 3 to reseed.

According to the product label, you do not want to water the lawn within 24 hours after application of Scotts Turf Builder Weed and Feed 3.

After applying Scotts Turf Builder Weed and Feed 3, weed stems will usually begin to twist and curl in several days, but a month or more may be required to see full control.

When is the best time to apply Scotts Turf Builder Weed and Feed 3 to my lawn, and how often can I use it?

Scotts Turf Builder Weed and Feed 3 is a fertilizer and post-emergent herbicide, so it is designed to be used in late Spring when target weeds are young and actively growing. You can reapply after at least 30 days as long as your turf is listed as safe. Do not make more than 2 applications per year. In the fall, do not treat centipede after the first of October and do not treat bahia after the first of November. Wait at least one month after using this product to seed, sod, or plant grass sprigs. Please refer to the product label for complete instructions.

How to control weeds in a newly seeded lawn

When your new grass starts to grow, it can be quite alarming when weeds start to grow with it. Sometimes, despite the most thorough seedbed preparation, weeds can lay dormant in soil until the conditions are made perfect for them to make an appearance – such as a reseed.

However, you can get rid of these weeds just as fast as they have appeared.
The important thing to remember when new weeds appear in your newly sown lawn is not to act hastily – do not apply a Feed, Weed and Moss Killer type product of any kind on a newly sown lawn.

Although this can be frustrating and we can appreciate that a quick solution will be desired, the good news about these types of weeds is that they are largely shallow rooting and should come out with the first mow at the 6-8 week mark after sowing. If they don’t, they should be easy to pull out of the turf.

If you find that the weeds are recurring past the 6-8-week mark, you may wish to consider using a selective herbicide to spot spray your weeds. Some weed killers such as glyphosate (Roundup) kill more than just weeds, so it is important to not apply these as if they are not done precisely, they can kill your grass. Shop bought selective weed killers will recommend when to apply their product and how often and you should read the instructions thoroughly and adhere to them.

See also  Weed Seed India

In short, here’s what you should do if you encounter weeds in your newly seeded lawn:

  1. Don’t panic – don’t use a Feed, Weed and Moss Killer product on a new lawn
  2. These weeds will be shallow rooting, you can pull them out by hand or wait until the 6-8 week mark to mow them out
  3. If the weeds are persistent and reoccurring, use a selective herbicide to spot treat them

If you find that when the lawn is at least six months old and has been taken over by weeds or moss, you can use a Feed, Weed and Moss Killer product.

How Long After Seeding Can You Weed And Feed

Since releasing this year’s FREE Guide To Fall Seeding we have had some questions come about spraying weeds now leading up to the seeding. In and this blog post will answer those.

First off, you do NOT have to kill all the weeds. The winter is going to kill them for you and having a few here and there will not get in your way too badly. However, if you have had a big emergence of crabgrass in your lawn (where it is all you can see), you will want to try and knock that back some – mainly so it doesn’t go to seed on you.

It’s probably hard for you to tell, but this lawn here is in Munster, IN and this is 99% crabgrass.

Here is what it looks like up close:

If this is you, you will want to spray this and start knocking it down. Leaving it in there is good because it will help hold your seed in place but for sure, if your lawn is this thick with crabgrass, hose it good with quinclorac , quincept or mesotrione leading up to seeding following the recommendations below.

Note on Details:

I’m going to get highly detailed here because I respect you and your intelligence. You’re smart and therefore you can and should seek to understand these chems so you can get the proper result from using them and have no fear of them. I respect the fact that once you take the time to understand this example, you will be better at discernment of similar questions in the future and thus you will be more confident in your approach and strategy. In other words, I’m not going to talk to you like you’re dumb and just tell you what to do. Instead I’m going to teach you like a professional. I hope you are good with that.

Second, I respect the green industry and the lawn pros who make their living doing this day in and day out. When you use professional formulations of products like the ones listed here, I now view you on their level and that also means we need to stay within the bounds of the label which is the law. If you see YouTubers or social media influencers out there not following the label, including me, you should call them/me out. Everyone makes mistakes here and there, but it’s their reaction to being called out that truly shows their intent. I like to think everyone means well and is willing to admit when they are wrong.

Can I Spray Weeds and Kill Crabgrass Now if I Plan to Seed In September/Fall Time?

This is the most common question and it’s difficult to answer for all of you so I’m going to show you how to find the answer for yourself using 2 examples.

Reading The Label – Quinclorac 75DF

Key: The answer to your question is on the label. Labels of weed control products almost always tell you the wait time until seeding after application. Let’s look at two that you likely may be using.

First one is quinclorac . This is the first choice active ingredient that kills crabgrass that you may be seeing. If your lawn is covered in crabgrass like a carpet – especially through the middle or meaty part of the lawn, you will want to kill it off or at least stunt it really well before seeding.

See also  Gumbo Weed Seed

The formulation most of you have is the “DF” which stands for “dry flowable” which means it’s small granules that you put in water to make a solution to spray. The concentration is 75% quinclorac.

Here’s the trick to reading labels fast. Find the PDF online. Make sure it is the VERY SAME product you have in hand. DoMyOwn is a great resource for this .

Once you pull up the label, hit “command F” on Mac or “control F” on PC and this opens up a search window. Type the word “Seed” in that window and it will reveal how many times that word appears in the label PDF.

Use the down arrows in that window to “scroll” through all the instances where that word appears. As I did this, I found the following very quickly.

So we can see that for certain types of seedings, this product won’t cause any harm at all but we have to scroll down to the tables 1 and 4 to get the details. Table 1 is going to tell us the grass types that are “highly” and “moderately” tolerant and table 4 will tell us the timing of the applications for ANY seeding.

This is where it sometimes gets confusing so follow along with me.

Here is Table 1

So what this is telling us is that you can use Quinclorac 75DF on established grasses listed as “highly” or “moderately” tolerant. That is really all this chart is for. It has nothing to do with seeding, hence the word “established.” But you still have to look at this chart first to find out if you should even use this product in the first place.

It’s main purpose is to tell you that you should not use this product on Bahia, Colonial Bent, Centipede or St Aug, period. Doesn’t matter if you are seeding or not, you should NOT use this product on these grass types. It also warns you about using it in or around fine fescues – they must be part of a blend if you do.

So in our case, where we are thinking about seeding the lawn, if we are planning to seed Bahia grass for example, then this product is out, 100%. No Bueno.

So if you passed the test on this part and are seeding Kentucky Bluegrass for example, then you need to next consult table 4 which is going to give you the timing of seeding both before and after.

Let’s stick with our example of Kentucky Bluegrass and you can see that it’s ok to apply quinclorac to the lawn to kill crabgrass 7 days before seeding or more. So right now, if you are let’s say 2 weeks away from seeding, you are welcome to spray away and kill that crabgrass dead. (note, this product turns crabgrass orange/red in about 6 days. But it takes much longer for the crabgrass to fully break down so likely some of it will still be there when you seed, just red and dead).

Also of note, if you have crabgrass living after or during your seed grow in, you have to wait 28 days after emergence (when you see it) before spraying. It’s important to understand what mix you are seeding in this case because if you have a tall fescue, bluegrass mixed seed , the tall fescue will emerge in about 10 days but the bluegrass won’t emerge for 18-21 days so you need to wait 28 days AFTER THE BLUEGRASS emerges before spraying quinclorac. If you really want to be safe, wait the 28 days and 1-2 mowings before applying – this adds some extra protection for the late bloomers as mowing encourages new grass to “harden off” quicker.

See also  Novelty Weed Seeds

Reading The Label – Seeding and Tenacity – Mesotrione

( we have the generic which is cheaper FYI)I will throw this one in real quick because it’s a little different. We recommend this product for a pre-emergent application at the time of seeding. It will suppress certain weeds in your grow in. If you are new and inexperienced, DO NOT think you have to use this – your results will be ok without it. But if you do use it, people think they can just spray it anytime they want and this is not true.

You can spray it anytime you want leading up to seed day, and on seed day, but once your seeds germinate, you should NOT spray it again until the new gras has been mowed 2-4 times or 4 weeks whichever is longer.

So to be clear – you can apply this up to seeding, but once the seed germinates (4-5 days for rye, up to 21 days for bluegrass) you should NOT apply it to weeds until the new turf has been mowed 2-4 times or 4 weeks, whichever is longer. This is because baby grass is weak and can’t withstand/tolerate mesotrione .

Reading The Label – Speed Zone – Red Label

This is another weed control I have recommended heavily and they list right on the label in clear printing how long to wait until you seed. Keep in mind, this product has an 85F degree temp restriction anyway so many of you would not be using it in summer, but in case you did, here is the wait time after app before seeding:

Reading the Label – Quincept – New Farm

Ok now just as I make everything seem like it’s as simple as reading the label, NuFarm (who I love) comes in and just leaves it off their Quincept label completely . Maybe someone from NuFarm can Tweet me and let me know why y’all have left this off your label for so many years… is there a typo you have not corrected? I have read and read the label and this is all I can find – it’s all about “spraying after you seed” but nothing about “spraying before you seed.”

You can read that all you want, backward and forward and it only tells you about “after” seeding. And since I have recommended this weed control so heavily this year I feel like I need to provide an answer.

First off, when I worked for TruGreen ChemLawn, Quincept was our go-to weed control for summer and I remember that every year that right around 3 weeks before overseeding time we would get a memo telling us to cut off the Quincept use. The memo would come early but would read “stop spraying Quincept 2 weeks prior to starting your overseedings for customers.”

So that is my first clue as to the reseed window – it comes from my experience.

Next, I found a product that is similar to Quincept in that it has the same active ingredients plus one. That is Q4 Plus . It has very similar concentrations of the active ingredients within the Quincept plus one more. That product says this:

In short, if you are using Quincept, wait a minimum of 14 days after application to throw down your grass seed. I had to use some logic with this one and figured I’d share it just in case you are doing all the research and coming up empty. Now you know.

So there you go, all about reading labels for seeding – hope this has helped you and that your seeding will be successful this season!

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